56801985 has 16 divisors (see below), whose sum is σ = 90980736. Its totient is φ = 30261888.

The previous prime is 56801959. The next prime is 56802017. The reversal of 56801985 is 58910865.

56801985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56801985 - 2⁹ = 56801473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20397 + ... + 23013.

It is an arithmetic number, because the mean of its divisors is an integer number (5686296).

Almost surely, 2^56801985 is an apocalyptic number.

It is an amenable number.

56801985 is a deficient number, since it is larger than the sum of its proper divisors (34178751).

56801985 is a wasteful number, since it uses less digits than its factorization.

56801985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 56801985 is about 7536.7091624926. The cubic root of 56801985 is about 384.4039463956.

The spelling of 56801985 in words is "fifty-six million, eight hundred one thousand, nine hundred eighty-five".