56017679 has 2 divisors, whose sum is σ = 56017680. Its totient is φ = 56017678.

The previous prime is 56017657. The next prime is 56017693. The reversal of 56017679 is 97671065.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56017679 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56017639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28008839 + 28008840.

It is an arithmetic number, because the mean of its divisors is an integer number (28008840).

Almost surely, 2^56017679 is an apocalyptic number.

56017679 is a deficient number, since it is larger than the sum of its proper divisors (1).

56017679 is an equidigital number, since it uses as much as digits as its factorization.

56017679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 56017679 is about 7484.4959082092. The cubic root of 56017679 is about 382.6264926880.

The spelling of 56017679 in words is "fifty-six million, seventeen thousand, six hundred seventy-nine".