25022992 has 10 divisors (see below), whose sum is σ = 48482078. Its totient is φ = 12511488.

The previous prime is 25022939. The next prime is 25022999. The reversal of 25022992 is 29922052.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17272336 + 7750656 = 4156^2 + 2784^2 .

It is not an unprimeable number, because it can be changed into a prime (25022999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781953 + ... + 781984.

Almost surely, 2^25022992 is an apocalyptic number.

It is an amenable number.

25022992 is a deficient number, since it is larger than the sum of its proper divisors (23459086).

25022992 is a wasteful number, since it uses less digits than its factorization.

25022992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563945 (or 1563939 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 25022992 is about 5002.2986716109. The cubic root of 25022992 is about 292.4913850435.

The spelling of 25022992 in words is "twenty-five million, twenty-two thousand, nine hundred ninety-two".