55957 has 4 divisors (see below), whose sum is σ = 61056.
Its totient is φ = 50860.
The previous prime is 55949. The next prime is 55967. The reversal of 55957 is 75955.
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.
It is a cyclic number.
It is not a de Polignac number, because 55957 - 23 = 55949 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (55927) 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, 2533 + ... + 2554.
It is an arithmetic number, because the mean of its divisors is an integer number (15264).
255957 is an apocalyptic number.
It is an amenable number.
55957 is a deficient number, since it is larger than the sum of its proper divisors (5099).
55957 is a wasteful number, since it uses less digits than its factorization.
55957 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5098.
The product of its digits is 7875, while the sum is 31.
The square root of 55957 is about 236.5523197942.
The cubic root of 55957 is about 38.2488287622.
It can be divided in two parts, 559 and 57, that added together give a palindrome (616).
The spelling of 55957 in words is "fifty-five thousand, nine hundred fifty-seven".