25093931 has 2 divisors, whose sum is σ = 25093932. Its totient is φ = 25093930.

The previous prime is 25093919. The next prime is 25093933. The reversal of 25093931 is 13939052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25093931 is a prime.

It is a super-2 number, since 2×25093931² = 1259410746065522, which contains 22 as substring.

Together with 25093933, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25093933) 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, 12546965 + 12546966.

It is an arithmetic number, because the mean of its divisors is an integer number (12546966).

Almost surely, 2^25093931 is an apocalyptic number.

25093931 is a deficient number, since it is larger than the sum of its proper divisors (1).

25093931 is an equidigital number, since it uses as much as digits as its factorization.

25093931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 25093931 is about 5009.3842935035. The cubic root of 25093931 is about 292.7675240128.

The spelling of 25093931 in words is "twenty-five million, ninety-three thousand, nine hundred thirty-one".