56766216 has 32 divisors (see below), whose sum is σ = 152832960. Its totient is φ = 17466432.

The previous prime is 56766209. The next prime is 56766221. The reversal of 56766216 is 61266765.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 90660 + ... + 91283.

It is an arithmetic number, because the mean of its divisors is an integer number (4776030).

Almost surely, 2^56766216 is an apocalyptic number.

It is an amenable number.

56766216 is an abundant number, since it is smaller than the sum of its proper divisors (96066744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56766216 is a wasteful number, since it uses less digits than its factorization.

56766216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181965 (or 181961 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 56766216 is about 7534.3358035065. The cubic root of 56766216 is about 384.3232412824.

The spelling of 56766216 in words is "fifty-six million, seven hundred sixty-six thousand, two hundred sixteen".