25470664 has 16 divisors (see below), whose sum is σ = 48222720. Its totient is φ = 12611280.

The previous prime is 25470661. The next prime is 25470667. The reversal of 25470664 is 46607452.

It is an interprime number because it is at equal distance from previous prime (25470661) and next prime (25470667).

It is not an unprimeable number, because it can be changed into a prime (25470661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14632 + ... + 16279.

It is an arithmetic number, because the mean of its divisors is an integer number (3013920).

Almost surely, 2^25470664 is an apocalyptic number.

It is an amenable number.

25470664 is a deficient number, since it is larger than the sum of its proper divisors (22752056).

25470664 is a wasteful number, since it uses less digits than its factorization.

25470664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31020 (or 31016 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 25470664 is about 5046.8469364545. The cubic root of 25470664 is about 294.2253505409.

The spelling of 25470664 in words is "twenty-five million, four hundred seventy thousand, six hundred sixty-four".