55773118 has 4 divisors (see below), whose sum is σ = 83659680. Its totient is φ = 27886558.

The previous prime is 55773083. The next prime is 55773167. The reversal of 55773118 is 81137755.

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

It is a super-2 number, since 2×55773118² = 6221281382883848, which contains 22 as substring.

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, 13943278 + ... + 13943281.

It is an arithmetic number, because the mean of its divisors is an integer number (20914920).

Almost surely, 2^55773118 is an apocalyptic number.

55773118 is a deficient number, since it is larger than the sum of its proper divisors (27886562).

55773118 is a wasteful number, since it uses less digits than its factorization.

55773118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27886561.

The product of its digits is 29400, while the sum is 37.

The square root of 55773118 is about 7468.1401968629. The cubic root of 55773118 is about 382.0688590541.

The spelling of 55773118 in words is "fifty-five million, seven hundred seventy-three thousand, one hundred eighteen".