56878650 has 36 divisors (see below), whose sum is σ = 152815182. Its totient is φ = 15167520.

The previous prime is 56878649. The next prime is 56878691. The reversal of 56878650 is 5687865.

56878650 is a `hidden beast` number, since 568 + 7 + 86 + 5 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 34609689 + 22268961 = 5883^2 + 4719^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 56878596 and 56878605.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 62749 + ... + 63648.

Almost surely, 2^56878650 is an apocalyptic number.

56878650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56878650 is an abundant number, since it is smaller than the sum of its proper divisors (95936532).

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

56878650 is a wasteful number, since it uses less digits than its factorization.

56878650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126415 (or 126407 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 56878650 is about 7541.7935532604. The cubic root of 56878650 is about 384.5768105417.

The spelling of 56878650 in words is "fifty-six million, eight hundred seventy-eight thousand, six hundred fifty".