56393656 has 16 divisors (see below), whose sum is σ = 115350840. Its totient is φ = 25633440.

The previous prime is 56393651. The next prime is 56393671. The reversal of 56393656 is 65639365.

It is a super-3 number, since 3×56393656³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56393651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320331 + ... + 320506.

Almost surely, 2^56393656 is an apocalyptic number.

It is an amenable number.

56393656 is an abundant number, since it is smaller than the sum of its proper divisors (58957184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56393656 is a wasteful number, since it uses less digits than its factorization.

56393656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640854 (or 640850 counting only the distinct ones).

The product of its digits is 437400, while the sum is 43.

The square root of 56393656 is about 7509.5709597819. The cubic root of 56393656 is about 383.4806165399.

The spelling of 56393656 in words is "fifty-six million, three hundred ninety-three thousand, six hundred fifty-six".