56767656 has 64 divisors (see below), whose sum is σ = 156427200. Its totient is φ = 17024000.

The previous prime is 56767643. The next prime is 56767661. The reversal of 56767656 is 65676765.

56767656 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25600 + ... + 27728.

It is an arithmetic number, because the mean of its divisors is an integer number (2444175).

Almost surely, 2^56767656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56767656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78213600).

56767656 is an abundant number, since it is smaller than the sum of its proper divisors (99659544).

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

56767656 is a wasteful number, since it uses less digits than its factorization.

56767656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2246 counting only the distinct ones).

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

The square root of 56767656 is about 7534.4313654051. The cubic root of 56767656 is about 384.3264909898.

The spelling of 56767656 in words is "fifty-six million, seven hundred sixty-seven thousand, six hundred fifty-six".