56442979 has 2 divisors, whose sum is σ = 56442980. Its totient is φ = 56442978.

The previous prime is 56442973. The next prime is 56443001. The reversal of 56442979 is 97924465.

56442979 is nontrivially palindromic in base 3.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56442979 is a prime.

It is not a weakly prime, because it can be changed into another prime (56442973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28221489 + 28221490.

It is an arithmetic number, because the mean of its divisors is an integer number (28221490).

Almost surely, 2^56442979 is an apocalyptic number.

56442979 is a deficient number, since it is larger than the sum of its proper divisors (1).

56442979 is an equidigital number, since it uses as much as digits as its factorization.

56442979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 56442979 is about 7512.8542512150. The cubic root of 56442979 is about 383.5923838566.

The spelling of 56442979 in words is "fifty-six million, four hundred forty-two thousand, nine hundred seventy-nine".