25902992 has 10 divisors (see below), whose sum is σ = 50187078. Its totient is φ = 12951488.

The previous prime is 25902983. The next prime is 25903027. The reversal of 25902992 is 29920952.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 541696 = 5036^2 + 736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809453 + ... + 809484.

Almost surely, 2^25902992 is an apocalyptic number.

It is an amenable number.

25902992 is a deficient number, since it is larger than the sum of its proper divisors (24284086).

25902992 is a wasteful number, since it uses less digits than its factorization.

25902992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618945 (or 1618939 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 25902992 is about 5089.4982070927. The cubic root of 25902992 is about 295.8807043012.

The spelling of 25902992 in words is "twenty-five million, nine hundred two thousand, nine hundred ninety-two".