25253522 has 12 divisors (see below), whose sum is σ = 44064990. Its totient is φ = 10822896.

The previous prime is 25253509. The next prime is 25253537. The reversal of 25253522 is 22535252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18653761 + 6599761 = 4319^2 + 2569^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25253491 and 25253500.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128747 + ... + 128942.

Almost surely, 2^25253522 is an apocalyptic number.

25253522 is a deficient number, since it is larger than the sum of its proper divisors (18811468).

25253522 is a wasteful number, since it uses less digits than its factorization.

25253522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257705 (or 257698 counting only the distinct ones).

The product of its digits is 6000, while the sum is 26.

The square root of 25253522 is about 5025.2882504390. The cubic root of 25253522 is about 293.3868551901.

Adding to 25253522 its reverse (22535252), we get a palindrome (47788774).

The spelling of 25253522 in words is "twenty-five million, two hundred fifty-three thousand, five hundred twenty-two".