56717937 has 12 divisors (see below), whose sum is σ = 82771780. Its totient is φ = 37421568.

The previous prime is 56717917. The next prime is 56717981. The reversal of 56717937 is 73971765.

56717937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 40144896 = 4071^2 + 6336^2 .

It is not a de Polignac number, because 56717937 - 2⁷ = 56717809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56717892 and 56717901.

It is not an unprimeable number, because it can be changed into a prime (56717917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31612 + ... + 33357.

Almost surely, 2^56717937 is an apocalyptic number.

It is an amenable number.

56717937 is a deficient number, since it is larger than the sum of its proper divisors (26053843).

56717937 is a wasteful number, since it uses less digits than its factorization.

56717937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65072 (or 65069 counting only the distinct ones).

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

The square root of 56717937 is about 7531.1311899342. The cubic root of 56717937 is about 384.2142562454.

The spelling of 56717937 in words is "fifty-six million, seven hundred seventeen thousand, nine hundred thirty-seven".