56181862 has 16 divisors (see below), whose sum is σ = 92503872. Its totient is φ = 25378920.

The previous prime is 56181859. The next prime is 56181863. The reversal of 56181862 is 26818165.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56181863) 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, 4248 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (5781492).

Almost surely, 2^56181862 is an apocalyptic number.

56181862 is a deficient number, since it is larger than the sum of its proper divisors (36322010).

56181862 is a wasteful number, since it uses less digits than its factorization.

56181862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843.

The product of its digits is 23040, while the sum is 37.

The square root of 56181862 is about 7495.4560901922. The cubic root of 56181862 is about 382.9999431905. Note that the first 4 decimals are identical.

The spelling of 56181862 in words is "fifty-six million, one hundred eighty-one thousand, eight hundred sixty-two".