56851982 has 16 divisors (see below), whose sum is σ = 93150000. Its totient is φ = 25808640.

The previous prime is 56851981. The next prime is 56851997. The reversal of 56851982 is 28915865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56851981) 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, 26444 + ... + 28512.

It is an arithmetic number, because the mean of its divisors is an integer number (5821875).

Almost surely, 2^56851982 is an apocalyptic number.

56851982 is a deficient number, since it is larger than the sum of its proper divisors (36298018).

56851982 is a wasteful number, since it uses less digits than its factorization.

56851982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331.

The product of its digits is 172800, while the sum is 44.

The square root of 56851982 is about 7540.0253315224. The cubic root of 56851982 is about 384.5166971972.

It can be divided in two parts, 5685 and 1982, that added together give a palindrome (7667).

The spelling of 56851982 in words is "fifty-six million, eight hundred fifty-one thousand, nine hundred eighty-two".