56422747 has 2 divisors, whose sum is σ = 56422748. Its totient is φ = 56422746.

The previous prime is 56422721. The next prime is 56422753. The reversal of 56422747 is 74722465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56422747 - 2¹⁵ = 56389979 is a prime.

It is not a weakly prime, because it can be changed into another prime (56428747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28211373 + 28211374.

It is an arithmetic number, because the mean of its divisors is an integer number (28211374).

Almost surely, 2^56422747 is an apocalyptic number.

56422747 is a deficient number, since it is larger than the sum of its proper divisors (1).

56422747 is an equidigital number, since it uses as much as digits as its factorization.

56422747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 37.

The square root of 56422747 is about 7511.5076382841. The cubic root of 56422747 is about 383.5465454504.

The spelling of 56422747 in words is "fifty-six million, four hundred twenty-two thousand, seven hundred forty-seven".