56813671 has 2 divisors, whose sum is σ = 56813672. Its totient is φ = 56813670.

The previous prime is 56813663. The next prime is 56813681. The reversal of 56813671 is 17631865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56813671 - 2³ = 56813663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56813671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56813641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28406835 + 28406836.

It is an arithmetic number, because the mean of its divisors is an integer number (28406836).

Almost surely, 2^56813671 is an apocalyptic number.

56813671 is a deficient number, since it is larger than the sum of its proper divisors (1).

56813671 is an equidigital number, since it uses as much as digits as its factorization.

56813671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 56813671 is about 7537.4843946770. The cubic root of 56813671 is about 384.4303060172.

The spelling of 56813671 in words is "fifty-six million, eight hundred thirteen thousand, six hundred seventy-one".