25587872 has 12 divisors (see below), whose sum is σ = 50376186. Its totient is φ = 12793920.

The previous prime is 25587869. The next prime is 25587883. The reversal of 25587872 is 27878552.

25587872 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 226576 = 5036^2 + 476^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399779 + ... + 399842.

Almost surely, 2^25587872 is an apocalyptic number.

It is an amenable number.

25587872 is a deficient number, since it is larger than the sum of its proper divisors (24788314).

25587872 is an equidigital number, since it uses as much as digits as its factorization.

25587872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799631 (or 799623 counting only the distinct ones).

The product of its digits is 313600, while the sum is 44.

The square root of 25587872 is about 5058.4456110548. The cubic root of 25587872 is about 294.6759709417.

The spelling of 25587872 in words is "twenty-five million, five hundred eighty-seven thousand, eight hundred seventy-two".