25220452 has 18 divisors (see below), whose sum is σ = 46886882. Its totient is φ = 11867904.

The previous prime is 25220449. The next prime is 25220471. The reversal of 25220452 is 25402252.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12432676 + 12787776 = 3526^2 + 3576^2 .

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, 9753 + ... + 12064.

Almost surely, 2^25220452 is an apocalyptic number.

It is an amenable number.

25220452 is a deficient number, since it is larger than the sum of its proper divisors (21666430).

25220452 is a wasteful number, since it uses less digits than its factorization.

25220452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21855 (or 21836 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 25220452 is about 5021.9968140173. The cubic root of 25220452 is about 293.2587338994.

The spelling of 25220452 in words is "twenty-five million, two hundred twenty thousand, four hundred fifty-two".