55297 has 6 divisors (see below), whose sum is σ = 60914. Its totient is φ = 50160.

The previous prime is 55291. The next prime is 55313. The reversal of 55297 is 79255.

It can be written as a sum of positive squares in only one way, i.e., 53361 + 1936 = 231^2 + 44^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55297 is a prime.

It is a Duffinian number.

55297 is a modest number, since divided by 297 gives 55 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108 + ... + 349.

It is a Proth number, since it is equal to 27 ⋅ 2¹¹ + 1 and 27 < 2¹¹.

2⁵⁵²⁹⁷ is an apocalyptic number.

It is an amenable number.

55297 is a deficient number, since it is larger than the sum of its proper divisors (5617).

55297 is a wasteful number, since it uses less digits than its factorization.

55297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 468 counting only the distinct ones).

The product of its digits is 3150, while the sum is 28.

The square root of 55297 is about 235.1531415908. The cubic root of 55297 is about 38.0978549046.

The spelling of 55297 in words is "fifty-five thousand, two hundred ninety-seven".