56705790 has 16 divisors (see below), whose sum is σ = 136093968. Its totient is φ = 15121536.

The previous prime is 56705771. The next prime is 56705791. The reversal of 56705790 is 9750765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56705791) 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, 945067 + ... + 945126.

It is an arithmetic number, because the mean of its divisors is an integer number (8505873).

Almost surely, 2^56705790 is an apocalyptic number.

56705790 is an abundant number, since it is smaller than the sum of its proper divisors (79388178).

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

56705790 is a wasteful number, since it uses less digits than its factorization.

56705790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890203.

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 56705790 is about 7530.3246941948. The cubic root of 56705790 is about 384.1868258648.

The spelling of 56705790 in words is "fifty-six million, seven hundred five thousand, seven hundred ninety".