56677656 has 32 divisors (see below), whose sum is σ = 161936640. Its totient is φ = 16193568.

The previous prime is 56677651. The next prime is 56677661. The reversal of 56677656 is 65677665.

It is an interprime number because it is at equal distance from previous prime (56677651) and next prime (56677661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56677651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168516 + ... + 168851.

It is an arithmetic number, because the mean of its divisors is an integer number (5060520).

Almost surely, 2^56677656 is an apocalyptic number.

56677656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56677656 is an abundant number, since it is smaller than the sum of its proper divisors (105258984).

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

56677656 is a wasteful number, since it uses less digits than its factorization.

56677656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337383 (or 337379 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 48.

The square root of 56677656 is about 7528.4564154945. The cubic root of 56677656 is about 384.1232785610.

Subtracting 56677656 from its reverse (65677665), we obtain a palindrome (9000009).

The spelling of 56677656 in words is "fifty-six million, six hundred seventy-seven thousand, six hundred fifty-six".