56645650 has 24 divisors (see below), whose sum is σ = 110908080. Its totient is φ = 21465360.

The previous prime is 56645621. The next prime is 56645651. The reversal of 56645650 is 5654665.

It is not an unprimeable number, because it can be changed into a prime (56645651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28864 + ... + 30763.

It is an arithmetic number, because the mean of its divisors is an integer number (4621170).

Almost surely, 2^56645650 is an apocalyptic number.

56645650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56645650 is a deficient number, since it is larger than the sum of its proper divisors (54262430).

56645650 is a wasteful number, since it uses less digits than its factorization.

56645650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59658 (or 59653 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 56645650 is about 7526.3304471701. The cubic root of 56645650 is about 384.0509598530.

The spelling of 56645650 in words is "fifty-six million, six hundred forty-five thousand, six hundred fifty".