57553 has 4 divisors (see below), whose sum is σ = 58480. Its totient is φ = 56628.

The previous prime is 57529. The next prime is 57557. The reversal of 57553 is 35575.

It is a happy number.

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 57553 - 2⁹ = 57041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363 + ... + 496.

It is an arithmetic number, because the mean of its divisors is an integer number (14620).

2⁵⁷⁵⁵³ is an apocalyptic number.

It is an amenable number.

57553 is a deficient number, since it is larger than the sum of its proper divisors (927).

57553 is an equidigital number, since it uses as much as digits as its factorization.

57553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its digits is 2625, while the sum is 25.

The square root of 57553 is about 239.9020633509. The cubic root of 57553 is about 38.6090683590.

The spelling of 57553 in words is "fifty-seven thousand, five hundred fifty-three".