25339664 has 30 divisors (see below), whose sum is σ = 57112974. Its totient is φ = 10859520.

The previous prime is 25339637. The next prime is 25339667. The reversal of 25339664 is 46693352.

It can be written as a sum of positive squares in only one way, i.e., 20322064 + 5017600 = 4508^2 + 2240^2 .

It is not an unprimeable number, because it can be changed into a prime (25339667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15377 + ... + 16944.

Almost surely, 2^25339664 is an apocalyptic number.

It is an amenable number.

25339664 is an abundant number, since it is smaller than the sum of its proper divisors (31773310).

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

25339664 is a wasteful number, since it uses less digits than its factorization.

25339664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32343 (or 32330 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The square root of 25339664 is about 5033.8518055263. The cubic root of 25339664 is about 293.7200661213.

The spelling of 25339664 in words is "twenty-five million, three hundred thirty-nine thousand, six hundred sixty-four".