56669684 has 6 divisors (see below), whose sum is σ = 99171954. Its totient is φ = 28334840.

The previous prime is 56669663. The next prime is 56669693. The reversal of 56669684 is 48696665.

It can be written as a sum of positive squares in only one way, i.e., 38093584 + 18576100 = 6172^2 + 4310^2 .

It is a super-2 number, since 2×56669684² = 6422906169319712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7083707 + ... + 7083714.

It is an arithmetic number, because the mean of its divisors is an integer number (16528659).

Almost surely, 2^56669684 is an apocalyptic number.

It is an amenable number.

56669684 is a deficient number, since it is larger than the sum of its proper divisors (42502270).

56669684 is a wasteful number, since it uses less digits than its factorization.

56669684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14167425 (or 14167423 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 50.

The square root of 56669684 is about 7527.9269390716. The cubic root of 56669684 is about 384.1052680870.

The spelling of 56669684 in words is "fifty-six million, six hundred sixty-nine thousand, six hundred eighty-four".