56749963 has 2 divisors, whose sum is σ = 56749964. Its totient is φ = 56749962.

The previous prime is 56749943. The next prime is 56749967. The reversal of 56749963 is 36994765.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56749963 is a prime.

It is not a weakly prime, because it can be changed into another prime (56749967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28374981 + 28374982.

It is an arithmetic number, because the mean of its divisors is an integer number (28374982).

Almost surely, 2^56749963 is an apocalyptic number.

56749963 is a deficient number, since it is larger than the sum of its proper divisors (1).

56749963 is an equidigital number, since it uses as much as digits as its factorization.

56749963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 49.

The square root of 56749963 is about 7533.2571308830. The cubic root of 56749963 is about 384.2865586548.

The spelling of 56749963 in words is "fifty-six million, seven hundred forty-nine thousand, nine hundred sixty-three".