56476831 has 2 divisors, whose sum is σ = 56476832. Its totient is φ = 56476830.

The previous prime is 56476829. The next prime is 56476841. The reversal of 56476831 is 13867465.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56476831 - 2¹ = 56476829 is a prime.

It is a super-2 number, since 2×56476831² = 6379264879605122, which contains 22 as substring.

Together with 56476829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56476801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28238415 + 28238416.

It is an arithmetic number, because the mean of its divisors is an integer number (28238416).

Almost surely, 2^56476831 is an apocalyptic number.

56476831 is a deficient number, since it is larger than the sum of its proper divisors (1).

56476831 is an equidigital number, since it uses as much as digits as its factorization.

56476831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 56476831 is about 7515.1068522011. The cubic root of 56476831 is about 383.6690557737.

The spelling of 56476831 in words is "fifty-six million, four hundred seventy-six thousand, eight hundred thirty-one".