56891842 has 12 divisors (see below), whose sum is σ = 99270630. Its totient is φ = 24382176.

The previous prime is 56891839. The next prime is 56891869. The reversal of 56891842 is 24819865.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39075001 + 17816841 = 6251^2 + 4221^2 .

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 5 ways as a sum of consecutive naturals, for example, 290167 + ... + 290362.

Almost surely, 2^56891842 is an apocalyptic number.

56891842 is a deficient number, since it is larger than the sum of its proper divisors (42378788).

56891842 is a wasteful number, since it uses less digits than its factorization.

56891842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580545 (or 580538 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 56891842 is about 7542.6680955747. The cubic root of 56891842 is about 384.6065401802.

The spelling of 56891842 in words is "fifty-six million, eight hundred ninety-one thousand, eight hundred forty-two".