56730878 has 16 divisors (see below), whose sum is σ = 86234544. Its totient is φ = 27988800.

The previous prime is 56730871. The next prime is 56730881. The reversal of 56730878 is 87803765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56730871) 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, 53453 + ... + 54503.

It is an arithmetic number, because the mean of its divisors is an integer number (5389659).

Almost surely, 2^56730878 is an apocalyptic number.

56730878 is a deficient number, since it is larger than the sum of its proper divisors (29503666).

56730878 is a wasteful number, since it uses less digits than its factorization.

56730878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 56730878 is about 7531.9903080129. The cubic root of 56730878 is about 384.2434753299.

The spelling of 56730878 in words is "fifty-six million, seven hundred thirty thousand, eight hundred seventy-eight".