56665330 has 16 divisors (see below), whose sum is σ = 106432704. Its totient is φ = 21680560.

The previous prime is 56665327. The next prime is 56665331. The reversal of 56665330 is 3356665.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56665331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122956 + ... + 123415.

It is an arithmetic number, because the mean of its divisors is an integer number (6652044).

Almost surely, 2^56665330 is an apocalyptic number.

56665330 is a deficient number, since it is larger than the sum of its proper divisors (49767374).

56665330 is a wasteful number, since it uses less digits than its factorization.

56665330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246401.

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 56665330 is about 7527.6377436750. The cubic root of 56665330 is about 384.0954307451.

The spelling of 56665330 in words is "fifty-six million, six hundred sixty-five thousand, three hundred thirty".