25022939 has 2 divisors, whose sum is σ = 25022940. Its totient is φ = 25022938.

The previous prime is 25022927. The next prime is 25022999. The reversal of 25022939 is 93922052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25022939 is a prime.

It is a super-2 number, since 2×25022939² = 1252294952395442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25022909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12511469 + 12511470.

It is an arithmetic number, because the mean of its divisors is an integer number (12511470).

Almost surely, 2^25022939 is an apocalyptic number.

25022939 is a deficient number, since it is larger than the sum of its proper divisors (1).

25022939 is an equidigital number, since it uses as much as digits as its factorization.

25022939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 25022939 is about 5002.2933740435. The cubic root of 25022939 is about 292.4911785393.

The spelling of 25022939 in words is "twenty-five million, twenty-two thousand, nine hundred thirty-nine".