57229 has 4 divisors (see below), whose sum is σ = 57760. Its totient is φ = 56700.

The previous prime is 57223. The next prime is 57241. The reversal of 57229 is 92275.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57229 - 2³ = 57221 is a prime.

It is a Duffinian number.

57229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57221) 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, 39 + ... + 340.

It is an arithmetic number, because the mean of its divisors is an integer number (14440).

2⁵⁷²²⁹ is an apocalyptic number.

It is an amenable number.

57229 is a deficient number, since it is larger than the sum of its proper divisors (531).

57229 is a wasteful number, since it uses less digits than its factorization.

57229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its digits is 1260, while the sum is 25.

The square root of 57229 is about 239.2258347253. The cubic root of 57229 is about 38.5364808541.

The spelling of 57229 in words is "fifty-seven thousand, two hundred twenty-nine".