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425025205 = 51121136217
BaseRepresentation
bin11001010101010…
…101111010110101
31002121202111222021
4121111111322311
51332301301310
6110101433141
713350440353
oct3125257265
91077674867
10425025205
111a8a08800
12ba40b7b1
136a094107
144063a7d3
15274a85da
hex19555eb5

425025205 has 24 divisors (see below), whose sum is σ = 565663896. Its totient is φ = 306324480.

The previous prime is 425025197. The next prime is 425025217. The reversal of 425025205 is 502520524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5963364 + 419061841 = 2442^2 + 20471^2 .

It is not a de Polignac number, because 425025205 - 23 = 425025197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425025205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65257 + ... + 71473.

It is an arithmetic number, because the mean of its divisors is an integer number (23569329).

Almost surely, 2425025205 is an apocalyptic number.

It is an amenable number.

425025205 is a deficient number, since it is larger than the sum of its proper divisors (140638691).

425025205 is a wasteful number, since it uses less digits than its factorization.

425025205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357 (or 6346 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 425025205 is about 20616.1394300679. The cubic root of 425025205 is about 751.8621607978.

Adding to 425025205 its reverse (502520524), we get a palindrome (927545729).

The spelling of 425025205 in words is "four hundred twenty-five million, twenty-five thousand, two hundred five".

Divisors: 1 5 11 55 113 121 565 605 1243 6215 6217 13673 31085 68365 68387 341935 702521 752257 3512605 3761285 7727731 38638655 85005041 425025205