25317087 has 16 divisors (see below), whose sum is σ = 35055840. Its totient is φ = 16232832.

The previous prime is 25317073. The next prime is 25317119. The reversal of 25317087 is 78071352.

It is not a de Polignac number, because 25317087 - 2⁶ = 25317023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25316087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34173 + ... + 34905.

It is an arithmetic number, because the mean of its divisors is an integer number (2190990).

Almost surely, 2^25317087 is an apocalyptic number.

25317087 is a deficient number, since it is larger than the sum of its proper divisors (9738753).

25317087 is a wasteful number, since it uses less digits than its factorization.

25317087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 25317087 is about 5031.6087884493. The cubic root of 25317087 is about 293.6328078168.

The spelling of 25317087 in words is "twenty-five million, three hundred seventeen thousand, eighty-seven".