56669937 has 4 divisors (see below), whose sum is σ = 75559920. Its totient is φ = 37779956.

The previous prime is 56669911. The next prime is 56669941. The reversal of 56669937 is 73996665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56669937 - 2¹¹ = 56667889 is a prime.

It is a super-2 number, since 2×56669937² = 6422963519167938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56669937.

It is not an unprimeable number, because it can be changed into a prime (56669537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9444987 + ... + 9444992.

It is an arithmetic number, because the mean of its divisors is an integer number (18889980).

Almost surely, 2^56669937 is an apocalyptic number.

It is an amenable number.

56669937 is a deficient number, since it is larger than the sum of its proper divisors (18889983).

56669937 is a wasteful number, since it uses less digits than its factorization.

56669937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18889982.

The product of its digits is 1837080, while the sum is 51.

The square root of 56669937 is about 7527.9437431479. The cubic root of 56669937 is about 384.1058396947.

The spelling of 56669937 in words is "fifty-six million, six hundred sixty-nine thousand, nine hundred thirty-seven".