56213066 has 32 divisors (see below), whose sum is σ = 105224448. Its totient is φ = 21928320.

The previous prime is 56213057. The next prime is 56213089. The reversal of 56213066 is 66031265.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11171 + ... + 15401.

It is an arithmetic number, because the mean of its divisors is an integer number (3288264).

Almost surely, 2^56213066 is an apocalyptic number.

56213066 is a deficient number, since it is larger than the sum of its proper divisors (49011382).

56213066 is a wasteful number, since it uses less digits than its factorization.

56213066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 56213066 is about 7497.5373290168. The cubic root of 56213066 is about 383.0708374725.

The spelling of 56213066 in words is "fifty-six million, two hundred thirteen thousand, sixty-six".