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5231525250 = 235379710273
BaseRepresentation
bin1001101111101001…
…01011110110000010
3111111121001000111110
410313310223312002
541203232302000
62223041424150
7243433142130
oct46764536602
914447030443
105231525250
112245072396
12102003b056
13654b03193
14378b2c750
1520943b850
hex137d2bd82

5231525250 has 128 divisors (see below), whose sum is σ = 15078615552. Its totient is φ = 1183334400.

The previous prime is 5231525207. The next prime is 5231525251. The reversal of 5231525250 is 525251325.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (5231525251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504114 + ... + 514386.

It is an arithmetic number, because the mean of its divisors is an integer number (117801684).

Almost surely, 25231525250 is an apocalyptic number.

5231525250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5231525250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7539307776).

5231525250 is an abundant number, since it is smaller than the sum of its proper divisors (9847090302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5231525250 is a wasteful number, since it uses less digits than its factorization.

5231525250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10397 (or 10387 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 5231525250 is about 72329.2834887779. The cubic root of 5231525250 is about 1735.9722367469.

Adding to 5231525250 its reverse (525251325), we get a palindrome (5756776575).

The spelling of 5231525250 in words is "five billion, two hundred thirty-one million, five hundred twenty-five thousand, two hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 97 105 125 150 175 194 210 250 291 350 375 485 525 582 679 750 875 970 1050 1358 1455 1750 2037 2425 2625 2910 3395 4074 4850 5250 6790 7275 10185 10273 12125 14550 16975 20370 20546 24250 30819 33950 36375 50925 51365 61638 71911 72750 84875 101850 102730 143822 154095 169750 215733 254625 256825 308190 359555 431466 509250 513650 719110 770475 996481 1078665 1284125 1540950 1797775 1992962 2157330 2568250 2989443 3595550 3852375 4982405 5393325 5978886 6975367 7704750 8988875 9964810 10786650 13950734 14947215 17977750 20926101 24912025 26966625 29894430 34876835 41852202 49824050 53933250 69753670 74736075 104630505 124560125 149472150 174384175 209261010 249120250 348768350 373680375 523152525 747360750 871920875 1046305050 1743841750 2615762625 5231525250