25550464 has 32 divisors (see below), whose sum is σ = 51129540. Its totient is φ = 12718080.

The previous prime is 25550449. The next prime is 25550467. The reversal of 25550464 is 46405552.

It can be written as a sum of positive squares in 2 ways, for example, as 23116864 + 2433600 = 4808^2 + 1560^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (25550467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55194 + ... + 55654.

Almost surely, 2^25550464 is an apocalyptic number.

It is an amenable number.

25550464 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

25550464 is an equidigital number, since it uses as much as digits as its factorization.

25550464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 25550464 is about 5054.7466801018. The cubic root of 25550464 is about 294.5323011220.

The spelling of 25550464 in words is "twenty-five million, five hundred fifty thousand, four hundred sixty-four".