25654664 has 16 divisors (see below), whose sum is σ = 54974400. Its totient is φ = 10994832.

The previous prime is 25654627. The next prime is 25654669. The reversal of 25654664 is 46645652.

It is not an unprimeable number, because it can be changed into a prime (25654669) 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, 229004 + ... + 229115.

It is an arithmetic number, because the mean of its divisors is an integer number (3435900).

Almost surely, 2^25654664 is an apocalyptic number.

It is an amenable number.

25654664 is an abundant number, since it is smaller than the sum of its proper divisors (29319736).

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

25654664 is a wasteful number, since it uses less digits than its factorization.

25654664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458132 (or 458128 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 25654664 is about 5065.0433364385. The cubic root of 25654664 is about 294.9321456500.

The spelling of 25654664 in words is "twenty-five million, six hundred fifty-four thousand, six hundred sixty-four".