56801558 has 16 divisors (see below), whose sum is σ = 93078720. Its totient is φ = 25782600.

The previous prime is 56801527. The next prime is 56801561. The reversal of 56801558 is 85510865.

56801558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 20033 + ... + 22691.

It is an arithmetic number, because the mean of its divisors is an integer number (5817420).

Almost surely, 2^56801558 is an apocalyptic number.

56801558 is a deficient number, since it is larger than the sum of its proper divisors (36277162).

56801558 is a wasteful number, since it uses less digits than its factorization.

56801558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 56801558 is about 7536.6808344257. The cubic root of 56801558 is about 384.4029831611.

The spelling of 56801558 in words is "fifty-six million, eight hundred one thousand, five hundred fifty-eight".