56306728 has 16 divisors (see below), whose sum is σ = 111132000. Its totient is φ = 26671536.

The previous prime is 56306713. The next prime is 56306729. The reversal of 56306728 is 82760365.

It is not an unprimeable number, because it can be changed into a prime (56306729) 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, 185068 + ... + 185371.

It is an arithmetic number, because the mean of its divisors is an integer number (6945750).

Almost surely, 2^56306728 is an apocalyptic number.

It is an amenable number.

56306728 is a deficient number, since it is larger than the sum of its proper divisors (54825272).

56306728 is a wasteful number, since it uses less digits than its factorization.

56306728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370464 (or 370460 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 56306728 is about 7503.7809136461. The cubic root of 56306728 is about 383.2834764816.

The spelling of 56306728 in words is "fifty-six million, three hundred six thousand, seven hundred twenty-eight".