56662747 has 2 divisors, whose sum is σ = 56662748. Its totient is φ = 56662746.

The previous prime is 56662741. The next prime is 56662759. The reversal of 56662747 is 74726665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56662747 - 2²³ = 48274139 is a prime.

It is not a weakly prime, because it can be changed into another prime (56662741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28331373 + 28331374.

It is an arithmetic number, because the mean of its divisors is an integer number (28331374).

Almost surely, 2^56662747 is an apocalyptic number.

56662747 is a deficient number, since it is larger than the sum of its proper divisors (1).

56662747 is an equidigital number, since it uses as much as digits as its factorization.

56662747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 43.

The square root of 56662747 is about 7527.4661739526. The cubic root of 56662747 is about 384.0895945276.

The spelling of 56662747 in words is "fifty-six million, six hundred sixty-two thousand, seven hundred forty-seven".