56765656 has 16 divisors (see below), whose sum is σ = 111063600. Its totient is φ = 27148704.

The previous prime is 56765651. The next prime is 56765677. The reversal of 56765656 is 65656765.

56765656 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×56765656² = 6444679402220672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56765651) 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, 154071 + ... + 154438.

It is an arithmetic number, because the mean of its divisors is an integer number (6941475).

Almost surely, 2^56765656 is an apocalyptic number.

It is an amenable number.

56765656 is a deficient number, since it is larger than the sum of its proper divisors (54297944).

56765656 is a wasteful number, since it uses less digits than its factorization.

56765656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308538 (or 308534 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 46.

The square root of 56765656 is about 7534.2986402186. The cubic root of 56765656 is about 384.3219774924.

The spelling of 56765656 in words is "fifty-six million, seven hundred sixty-five thousand, six hundred fifty-six".