56317779 has 12 divisors (see below), whose sum is σ = 92969136. Its totient is φ = 32181552.

The previous prime is 56317771. The next prime is 56317783. The reversal of 56317779 is 97771365.

56317779 is a `hidden beast` number, since 5 + 631 + 7 + 7 + 7 + 9 = 666.

It is not a de Polignac number, because 56317779 - 2³ = 56317771 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56317771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446904 + ... + 447029.

It is an arithmetic number, because the mean of its divisors is an integer number (7747428).

Almost surely, 2^56317779 is an apocalyptic number.

56317779 is a deficient number, since it is larger than the sum of its proper divisors (36651357).

56317779 is a wasteful number, since it uses less digits than its factorization.

56317779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893946 (or 893943 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 56317779 is about 7504.5172396364. The cubic root of 56317779 is about 383.3085497945.

The spelling of 56317779 in words is "fifty-six million, three hundred seventeen thousand, seven hundred seventy-nine".