56730736 has 20 divisors (see below), whose sum is σ = 111153600. Its totient is φ = 28045952.

The previous prime is 56730733. The next prime is 56730743. The reversal of 56730736 is 63703765.

It is a junction number, because it is equal to n+sod(n) for n = 56730695 and 56730704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56730733) 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 3 ways as a sum of consecutive naturals, for example, 18496 + ... + 21343.

It is an arithmetic number, because the mean of its divisors is an integer number (5557680).

Almost surely, 2^56730736 is an apocalyptic number.

It is an amenable number.

56730736 is a deficient number, since it is larger than the sum of its proper divisors (54422864).

56730736 is a wasteful number, since it uses less digits than its factorization.

56730736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39936 (or 39930 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 37.

The square root of 56730736 is about 7531.9808815477. The cubic root of 56730736 is about 384.2431547366.

The spelling of 56730736 in words is "fifty-six million, seven hundred thirty thousand, seven hundred thirty-six".