25252664 has 8 divisors (see below), whose sum is σ = 47348760. Its totient is φ = 12626328.

The previous prime is 25252663. The next prime is 25252673. The reversal of 25252664 is 46625252.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 25252664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1578284 + ... + 1578299.

It is an arithmetic number, because the mean of its divisors is an integer number (5918595).

Almost surely, 2^25252664 is an apocalyptic number.

It is an amenable number.

25252664 is a deficient number, since it is larger than the sum of its proper divisors (22096096).

25252664 is a wasteful number, since it uses less digits than its factorization.

25252664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156589 (or 3156585 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 25252664 is about 5025.2028814765. The cubic root of 25252664 is about 293.3835325015.

The spelling of 25252664 in words is "twenty-five million, two hundred fifty-two thousand, six hundred sixty-four".