55277158 has 4 divisors (see below), whose sum is σ = 82915740. Its totient is φ = 27638578.

The previous prime is 55277141. The next prime is 55277179. The reversal of 55277158 is 85177255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85177255 = 5 ⋅17035451.

It is a self number, because there is not a number n which added to its sum of digits gives 55277158.

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, 13819288 + ... + 13819291.

It is an arithmetic number, because the mean of its divisors is an integer number (20728935).

Almost surely, 2^55277158 is an apocalyptic number.

55277158 is a deficient number, since it is larger than the sum of its proper divisors (27638582).

55277158 is a wasteful number, since it uses less digits than its factorization.

55277158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27638581.

The product of its digits is 98000, while the sum is 40.

The square root of 55277158 is about 7434.8609939931. The cubic root of 55277158 is about 380.9329752610.

The spelling of 55277158 in words is "fifty-five million, two hundred seventy-seven thousand, one hundred fifty-eight".