56979759 has 4 divisors (see below), whose sum is σ = 75973016. Its totient is φ = 37986504.

The previous prime is 56979757. The next prime is 56979787. The reversal of 56979759 is 95797965.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56979759 - 2¹ = 56979757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56979699 and 56979708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56979757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9496624 + ... + 9496629.

It is an arithmetic number, because the mean of its divisors is an integer number (18993254).

Almost surely, 2^56979759 is an apocalyptic number.

56979759 is a deficient number, since it is larger than the sum of its proper divisors (18993257).

56979759 is a wasteful number, since it uses less digits than its factorization.

56979759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18993256.

The product of its digits is 5358150, while the sum is 57.

The square root of 56979759 is about 7548.4938232736. The cubic root of 56979759 is about 384.8045536342.

The spelling of 56979759 in words is "fifty-six million, nine hundred seventy-nine thousand, seven hundred fifty-nine".