32557 has 4 divisors (see below), whose sum is σ = 37216. Its totient is φ = 27900.

The previous prime is 32537. The next prime is 32561. The reversal of 32557 is 75523.

32557 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 an emirpimes, since its reverse is a distinct semiprime: 75523 = 7 ⋅10789.

It is a cyclic number.

It is not a de Polignac number, because 32557 - 2⁷ = 32429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2319 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (9304).

2³²⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

32557 is a deficient number, since it is larger than the sum of its proper divisors (4659).

32557 is an equidigital number, since it uses as much as digits as its factorization.

32557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658.

The product of its digits is 1050, while the sum is 22.

The square root of 32557 is about 180.4355840737. The cubic root of 32557 is about 31.9311671490.

The spelling of 32557 in words is "thirty-two thousand, five hundred fifty-seven".