56081518 has 8 divisors (see below), whose sum is σ = 84372912. Its totient is φ = 27957216.

The previous prime is 56081513. The next prime is 56081539. The reversal of 56081518 is 81518065.

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

It is a super-2 number, since 2×56081518² = 6290273322368648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56081513) by changing a digit.

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, 40930 + ... + 42277.

It is an arithmetic number, because the mean of its divisors is an integer number (10546614).

Almost surely, 2^56081518 is an apocalyptic number.

56081518 is a deficient number, since it is larger than the sum of its proper divisors (28291394).

56081518 is a wasteful number, since it uses less digits than its factorization.

56081518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83546.

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 56081518 is about 7488.7594433257. The cubic root of 56081518 is about 382.7717874115.

The spelling of 56081518 in words is "fifty-six million, eighty-one thousand, five hundred eighteen".