56779337 has 16 divisors (see below), whose sum is σ = 61896960. Its totient is φ = 51879168.

The previous prime is 56779297. The next prime is 56779369. The reversal of 56779337 is 73397765.

It is a cyclic number.

It is not a de Polignac number, because 56779337 - 2¹² = 56775241 is a prime.

It is a super-2 number, since 2×56779337² = 6447786220319138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56779291 and 56779300.

It is not an unprimeable number, because it can be changed into a prime (56779397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142823 + ... + 143219.

It is an arithmetic number, because the mean of its divisors is an integer number (3868560).

Almost surely, 2^56779337 is an apocalyptic number.

It is an amenable number.

56779337 is a deficient number, since it is larger than the sum of its proper divisors (5117623).

56779337 is a wasteful number, since it uses less digits than its factorization.

56779337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its digits is 833490, while the sum is 47.

The square root of 56779337 is about 7535.2065001564. The cubic root of 56779337 is about 384.3528499541.

The spelling of 56779337 in words is "fifty-six million, seven hundred seventy-nine thousand, three hundred thirty-seven".