25392897 has 24 divisors (see below), whose sum is σ = 38920128. Its totient is φ = 15919200.

The previous prime is 25392881. The next prime is 25392907. The reversal of 25392897 is 79829352.

25392897 is a `hidden beast` number, since 2 + 539 + 28 + 97 = 666.

It is not a de Polignac number, because 25392897 - 2⁴ = 25392881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25392097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11622 + ... + 13632.

It is an arithmetic number, because the mean of its divisors is an integer number (1621672).

Almost surely, 2^25392897 is an apocalyptic number.

It is an amenable number.

25392897 is a deficient number, since it is larger than the sum of its proper divisors (13527231).

25392897 is a wasteful number, since it uses less digits than its factorization.

25392897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2098 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 25392897 is about 5039.1365331771. The cubic root of 25392897 is about 293.9256024440.

The spelling of 25392897 in words is "twenty-five million, three hundred ninety-two thousand, eight hundred ninety-seven".