25023664 has 20 divisors (see below), whose sum is σ = 49280080. Its totient is φ = 12306240.

The previous prime is 25023637. The next prime is 25023673. The reversal of 25023664 is 46632052.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11844 + ... + 13795.

It is an arithmetic number, because the mean of its divisors is an integer number (2464004).

Almost surely, 2^25023664 is an apocalyptic number.

It is an amenable number.

25023664 is a deficient number, since it is larger than the sum of its proper divisors (24256416).

25023664 is a wasteful number, since it uses less digits than its factorization.

25023664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25708 (or 25702 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25023664 is about 5002.3658402800. The cubic root of 25023664 is about 292.4940033348.

The spelling of 25023664 in words is "twenty-five million, twenty-three thousand, six hundred sixty-four".