56513671 has 2 divisors, whose sum is σ = 56513672. Its totient is φ = 56513670.

The previous prime is 56513617. The next prime is 56513687. The reversal of 56513671 is 17631565.

Together with previous prime (56513617) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56513671 - 2⁹ = 56513159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56513971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28256835 + 28256836.

It is an arithmetic number, because the mean of its divisors is an integer number (28256836).

Almost surely, 2^56513671 is an apocalyptic number.

56513671 is a deficient number, since it is larger than the sum of its proper divisors (1).

56513671 is an equidigital number, since it uses as much as digits as its factorization.

56513671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 34.

The square root of 56513671 is about 7517.5575155765. The cubic root of 56513671 is about 383.7524604524.

The spelling of 56513671 in words is "fifty-six million, five hundred thirteen thousand, six hundred seventy-one".