56728562 has 16 divisors (see below), whose sum is σ = 93225600. Its totient is φ = 25675440.

The previous prime is 56728531. The next prime is 56728579. The reversal of 56728562 is 26582765.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137 + ... + 10652.

It is an arithmetic number, because the mean of its divisors is an integer number (5826600).

Almost surely, 2^56728562 is an apocalyptic number.

56728562 is a deficient number, since it is larger than the sum of its proper divisors (36497038).

56728562 is a wasteful number, since it uses less digits than its factorization.

56728562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11041.

The product of its digits is 201600, while the sum is 41.

The square root of 56728562 is about 7531.8365622204. The cubic root of 56728562 is about 384.2382464314.

The spelling of 56728562 in words is "fifty-six million, seven hundred twenty-eight thousand, five hundred sixty-two".