56666704 has 10 divisors (see below), whose sum is σ = 109791770. Its totient is φ = 28333344.

The previous prime is 56666693. The next prime is 56666707. The reversal of 56666704 is 40766665.

It can be written as a sum of positive squares in only one way, i.e., 34199104 + 22467600 = 5848^2 + 4740^2 .

It is a super-2 number, since 2×56666704² = 6422230684447232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56666707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770819 + ... + 1770850.

It is an arithmetic number, because the mean of its divisors is an integer number (10979177).

Almost surely, 2^56666704 is an apocalyptic number.

It is an amenable number.

56666704 is a deficient number, since it is larger than the sum of its proper divisors (53125066).

56666704 is a wasteful number, since it uses less digits than its factorization.

56666704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541677 (or 3541671 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 56666704 is about 7527.7290068121. The cubic root of 56666704 is about 384.0985351880.

The spelling of 56666704 in words is "fifty-six million, six hundred sixty-six thousand, seven hundred four".