56000066 has 8 divisors (see below), whose sum is σ = 84080640. Its totient is φ = 27973188.

The previous prime is 56000059. The next prime is 56000071. The reversal of 56000066 is 66000065.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

56000066 is a modest number, since divided by 66 gives 56 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10706 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (10510080).

Almost surely, 2^56000066 is an apocalyptic number.

56000066 is a deficient number, since it is larger than the sum of its proper divisors (28080574).

56000066 is a wasteful number, since it uses less digits than its factorization.

56000066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26848.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 56000066 is about 7483.3191833571. The cubic root of 56000066 is about 382.5863868562.

Subtracting 56000066 from its reverse (66000065), we obtain a palindrome (9999999).

The spelling of 56000066 in words is "fifty-six million, sixty-six", and thus it is an aban number, an eban number, and an uban number.