56664996 has 12 divisors (see below), whose sum is σ = 132218352. Its totient is φ = 18888328.

The previous prime is 56664989. The next prime is 56664997. The reversal of 56664996 is 69946665.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (56664997) 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, 2361030 + ... + 2361053.

It is an arithmetic number, because the mean of its divisors is an integer number (11018196).

Almost surely, 2^56664996 is an apocalyptic number.

It is an amenable number.

56664996 is an abundant number, since it is smaller than the sum of its proper divisors (75553356).

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

56664996 is a wasteful number, since it uses less digits than its factorization.

56664996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722090 (or 4722088 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 51.

The square root of 56664996 is about 7527.6155587277. The cubic root of 56664996 is about 384.0946760912.

The spelling of 56664996 in words is "fifty-six million, six hundred sixty-four thousand, nine hundred ninety-six".