25561252 has 6 divisors (see below), whose sum is σ = 44732198. Its totient is φ = 12780624.

The previous prime is 25561247. The next prime is 25561253. The reversal of 25561252 is 25216552.

It can be written as a sum of positive squares in only one way, i.e., 12787776 + 12773476 = 3576^2 + 3574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25561252.

It is not an unprimeable number, because it can be changed into a prime (25561253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195153 + ... + 3195160.

Almost surely, 2^25561252 is an apocalyptic number.

It is an amenable number.

25561252 is a deficient number, since it is larger than the sum of its proper divisors (19170946).

25561252 is a wasteful number, since it uses less digits than its factorization.

25561252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390317 (or 6390315 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 25561252 is about 5055.8136832759. The cubic root of 25561252 is about 294.5737480846.

The spelling of 25561252 in words is "twenty-five million, five hundred sixty-one thousand, two hundred fifty-two".