25625313 has 24 divisors (see below), whose sum is σ = 43670016. Its totient is φ = 14169600.

The previous prime is 25625311. The next prime is 25625321. The reversal of 25625313 is 31352652.

25625313 is a `hidden beast` number, since 2 + 5 + 625 + 31 + 3 = 666.

It is not a de Polignac number, because 25625313 - 2¹ = 25625311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25625311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4608 + ... + 8513.

It is an arithmetic number, because the mean of its divisors is an integer number (1819584).

Almost surely, 2^25625313 is an apocalyptic number.

It is an amenable number.

25625313 is a deficient number, since it is larger than the sum of its proper divisors (18044703).

25625313 is a wasteful number, since it uses less digits than its factorization.

25625313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13165 (or 13162 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 25625313 is about 5062.1450986711. The cubic root of 25625313 is about 294.8196273600.

Adding to 25625313 its reverse (31352652), we get a palindrome (56977965).

It can be divided in two parts, 2562 and 5313, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 25625313 in words is "twenty-five million, six hundred twenty-five thousand, three hundred thirteen".