56396890 has 48 divisors (see below), whose sum is σ = 112766976. Its totient is φ = 20291040.

The previous prime is 56396881. The next prime is 56396891. The reversal of 56396890 is 9869365.

56396890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56396890.

It is not an unprimeable number, because it can be changed into a prime (56396891) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 153487 + ... + 153853.

It is an arithmetic number, because the mean of its divisors is an integer number (2349312).

Almost surely, 2^56396890 is an apocalyptic number.

56396890 is a deficient number, since it is larger than the sum of its proper divisors (56370086).

56396890 is a wasteful number, since it uses less digits than its factorization.

56396890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 56396890 is about 7509.7862819124. The cubic root of 56396890 is about 383.4879468716.

The spelling of 56396890 in words is "fifty-six million, three hundred ninety-six thousand, eight hundred ninety".