56705880 has 384 divisors, whose sum is σ = 237012480. Its totient is φ = 10506240.

The previous prime is 56705843. The next prime is 56705893. The reversal of 56705880 is 8850765.

It is a happy number.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 2984511 + ... + 2984529.

It is an arithmetic number, because the mean of its divisors is an integer number (617220).

Almost surely, 2^56705880 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 56705880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118506240).

56705880 is an abundant number, since it is smaller than the sum of its proper divisors (180306600).

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

56705880 is a wasteful number, since it uses less digits than its factorization.

56705880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 56705880 is about 7530.3306700304. The cubic root of 56705880 is about 384.1870291174.

The spelling of 56705880 in words is "fifty-six million, seven hundred five thousand, eight hundred eighty".