55757 has 4 divisors (see below), whose sum is σ = 60060. Its totient is φ = 51456.

The previous prime is 55733. The next prime is 55763. The reversal of 55757 is 75755.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32041 + 23716 = 179^2 + 154^2 .

It is a cyclic number.

It is not a de Polignac number, because 55757 - 2⁸ = 55501 is a prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55717) 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, 2132 + ... + 2157.

It is an arithmetic number, because the mean of its divisors is an integer number (15015).

2⁵⁵⁷⁵⁷ is an apocalyptic number.

It is an amenable number.

55757 is a deficient number, since it is larger than the sum of its proper divisors (4303).

55757 is a wasteful number, since it uses less digits than its factorization.

55757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302.

The product of its digits is 6125, while the sum is 29.

The square root of 55757 is about 236.1292019213. The cubic root of 55757 is about 38.2032050526.

The spelling of 55757 in words is "fifty-five thousand, seven hundred fifty-seven".