25235664 has 40 divisors (see below), whose sum is σ = 66787392. Its totient is φ = 8206080.

The previous prime is 25235659. The next prime is 25235671. The reversal of 25235664 is 46653252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4444 + ... + 8379.

Almost surely, 2^25235664 is an apocalyptic number.

25235664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25235664 is an abundant number, since it is smaller than the sum of its proper divisors (41551728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25235664 is a wasteful number, since it uses less digits than its factorization.

25235664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12875 (or 12869 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 25235664 is about 5023.5111227109. The cubic root of 25235664 is about 293.3176828197.

The spelling of 25235664 in words is "twenty-five million, two hundred thirty-five thousand, six hundred sixty-four".