56438518 has 8 divisors (see below), whose sum is σ = 85226400. Its totient is φ = 28029720.

The previous prime is 56438477. The next prime is 56438537. The reversal of 56438518 is 81583465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94398 + ... + 94993.

It is an arithmetic number, because the mean of its divisors is an integer number (10653300).

Almost surely, 2^56438518 is an apocalyptic number.

56438518 is a deficient number, since it is larger than the sum of its proper divisors (28787882).

56438518 is a wasteful number, since it uses less digits than its factorization.

56438518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189542.

The product of its digits is 115200, while the sum is 40.

The square root of 56438518 is about 7512.5573541904. The cubic root of 56438518 is about 383.5822777829.

It can be divided in two parts, 5643 and 8518, that added together give a square (14161 = 119²).

The spelling of 56438518 in words is "fifty-six million, four hundred thirty-eight thousand, five hundred eighteen".