25252564 has 6 divisors (see below), whose sum is σ = 44191994. Its totient is φ = 12626280.

The previous prime is 25252541. The next prime is 25252603. The reversal of 25252564 is 46525252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14884164 + 10368400 = 3858^2 + 3220^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3156567 + ... + 3156574.

Almost surely, 2^25252564 is an apocalyptic number.

It is an amenable number.

25252564 is a deficient number, since it is larger than the sum of its proper divisors (18939430).

25252564 is a wasteful number, since it uses less digits than its factorization.

25252564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313145 (or 6313143 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 25252564 is about 5025.1929316196. The cubic root of 25252564 is about 293.3831452368.

The spelling of 25252564 in words is "twenty-five million, two hundred fifty-two thousand, five hundred sixty-four".