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25300253 = 112239091
BaseRepresentation
bin110000010000…
…0110100011101
31202121101102102
41200200310131
522434102003
62302134445
7425022446
oct140406435
952541372
1025300253
1113310500
128581425
13531aa84
1435082cd
15234b588
hex1820d1d

25300253 has 12 divisors (see below), whose sum is σ = 29021664. Its totient is φ = 21997800.

The previous prime is 25300243. The next prime is 25300273. The reversal of 25300253 is 35200352.

It is not a de Polignac number, because 25300253 - 24 = 25300237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25300243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1763 + ... + 7328.

It is an arithmetic number, because the mean of its divisors is an integer number (2418472).

Almost surely, 225300253 is an apocalyptic number.

25300253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25300253 is a deficient number, since it is larger than the sum of its proper divisors (3721411).

25300253 is a wasteful number, since it uses less digits than its factorization.

25300253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9136 (or 9125 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 25300253 is about 5029.9356854735. The cubic root of 25300253 is about 293.5677119829.

Subtracting 25300253 from its reverse (35200352), we obtain a palindrome (9900099).

It can be divided in two parts, 25300 and 253, that multiplied together give a square (6400900 = 25302).

The spelling of 25300253 in words is "twenty-five million, three hundred thousand, two hundred fifty-three".

Divisors: 1 11 23 121 253 2783 9091 100001 209093 1100011 2300023 25300253