55756718 has 4 divisors (see below), whose sum is σ = 83635080. Its totient is φ = 27878358.

The previous prime is 55756709. The next prime is 55756721. The reversal of 55756718 is 81765755.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13939178 + ... + 13939181.

It is an arithmetic number, because the mean of its divisors is an integer number (20908770).

Almost surely, 2^55756718 is an apocalyptic number.

55756718 is a deficient number, since it is larger than the sum of its proper divisors (27878362).

55756718 is a wasteful number, since it uses less digits than its factorization.

55756718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27878361.

The product of its digits is 294000, while the sum is 44.

The square root of 55756718 is about 7467.0421185366. The cubic root of 55756718 is about 382.0314064618.

It can be divided in two parts, 557 and 56718, that added together give a palindrome (57275).

The spelling of 55756718 in words is "fifty-five million, seven hundred fifty-six thousand, seven hundred eighteen".