56275931 has 2 divisors, whose sum is σ = 56275932. Its totient is φ = 56275930.

The previous prime is 56275883. The next prime is 56275987. The reversal of 56275931 is 13957265.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56275931 - 2⁶ = 56275867 is a prime.

It is a super-3 number, since 3×56275931³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56275991) 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, 28137965 + 28137966.

It is an arithmetic number, because the mean of its divisors is an integer number (28137966).

Almost surely, 2^56275931 is an apocalyptic number.

56275931 is a deficient number, since it is larger than the sum of its proper divisors (1).

56275931 is an equidigital number, since it uses as much as digits as its factorization.

56275931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 56275931 is about 7501.7285341446. The cubic root of 56275931 is about 383.2135846921.

The spelling of 56275931 in words is "fifty-six million, two hundred seventy-five thousand, nine hundred thirty-one".