25250664 has 16 divisors (see below), whose sum is σ = 63126720. Its totient is φ = 8416880.

The previous prime is 25250663. The next prime is 25250671. The reversal of 25250664 is 46605252.

It is not an unprimeable number, because it can be changed into a prime (25250663) 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, 526032 + ... + 526079.

It is an arithmetic number, because the mean of its divisors is an integer number (3945420).

Almost surely, 2^25250664 is an apocalyptic number.

25250664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25250664 is an abundant number, since it is smaller than the sum of its proper divisors (37876056).

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

25250664 is a wasteful number, since it uses less digits than its factorization.

25250664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052120 (or 1052116 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 25250664 is about 5025.0038805955. The cubic root of 25250664 is about 293.3757870143.

The spelling of 25250664 in words is "twenty-five million, two hundred fifty thousand, six hundred sixty-four".