25507252 has 6 divisors (see below), whose sum is σ = 44637698. Its totient is φ = 12753624.

The previous prime is 25507249. The next prime is 25507271. The reversal of 25507252 is 25270552.

It can be written as a sum of positive squares in only one way, i.e., 23853456 + 1653796 = 4884^2 + 1286^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25507252.

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, 3188403 + ... + 3188410.

Almost surely, 2^25507252 is an apocalyptic number.

It is an amenable number.

25507252 is a deficient number, since it is larger than the sum of its proper divisors (19130446).

25507252 is a wasteful number, since it uses less digits than its factorization.

25507252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376817 (or 6376815 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 25507252 is about 5050.4704731342. The cubic root of 25507252 is about 294.3661656976.

The spelling of 25507252 in words is "twenty-five million, five hundred seven thousand, two hundred fifty-two".