25106664 has 32 divisors (see below), whose sum is σ = 68473440. Its totient is φ = 7608000.

The previous prime is 25106647. The next prime is 25106689. The reversal of 25106664 is 46660152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47287 + ... + 47814.

It is an arithmetic number, because the mean of its divisors is an integer number (2139795).

Almost surely, 2^25106664 is an apocalyptic number.

25106664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25106664 is an abundant number, since it is smaller than the sum of its proper divisors (43366776).

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

25106664 is a wasteful number, since it uses less digits than its factorization.

25106664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95121 (or 95117 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 25106664 is about 5010.6550469973. The cubic root of 25106664 is about 292.8170337070.

The spelling of 25106664 in words is "twenty-five million, one hundred six thousand, six hundred sixty-four".