55277 has 4 divisors (see below), whose sum is σ = 55776. Its totient is φ = 54780.

The previous prime is 55259. The next prime is 55291. The reversal of 55277 is 77255.

55277 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 77255 = 5 ⋅15451.

It is a cyclic number.

It is not a de Polignac number, because 55277 - 2⁶ = 55213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55277.

It is not an unprimeable number, because it can be changed into a prime (55207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 332.

It is an arithmetic number, because the mean of its divisors is an integer number (13944).

2⁵⁵²⁷⁷ is an apocalyptic number.

It is an amenable number.

55277 is a deficient number, since it is larger than the sum of its proper divisors (499).

55277 is a wasteful number, since it uses less digits than its factorization.

55277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its digits is 2450, while the sum is 26.

The square root of 55277 is about 235.1106122658. The cubic root of 55277 is about 38.0932612317.

The spelling of 55277 in words is "fifty-five thousand, two hundred seventy-seven".