56808678 has 16 divisors (see below), whose sum is σ = 117282816. Its totient is φ = 18325320.

The previous prime is 56808677. The next prime is 56808683. The reversal of 56808678 is 87680865.

It is a happy number.

It is a super-2 number, since 2×56808678² = 6454451792215368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56808671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152526 + ... + 152897.

It is an arithmetic number, because the mean of its divisors is an integer number (7330176).

Almost surely, 2^56808678 is an apocalyptic number.

56808678 is an abundant number, since it is smaller than the sum of its proper divisors (60474138).

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

56808678 is a wasteful number, since it uses less digits than its factorization.

56808678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305459.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 56808678 is about 7537.1531761004. The cubic root of 56808678 is about 384.4190439582.

The spelling of 56808678 in words is "fifty-six million, eight hundred eight thousand, six hundred seventy-eight".