57245 has 6 divisors (see below), whose sum is σ = 69342. Its totient is φ = 45368.

The previous prime is 57241. The next prime is 57251. The reversal of 57245 is 54275.

It can be written as a sum of positive squares in only one way, i.e., 45796 + 11449 = 214^2 + 107^2 .

It is not a de Polignac number, because 57245 - 2² = 57241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 482 + ... + 588.

It is an arithmetic number, because the mean of its divisors is an integer number (11557).

2⁵⁷²⁴⁵ is an apocalyptic number.

It is an amenable number.

57245 is a deficient number, since it is larger than the sum of its proper divisors (12097).

57245 is an equidigital number, since it uses as much as digits as its factorization.

57245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 112 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 57245 is about 239.2592735925. The cubic root of 57245 is about 38.5400718438.

The spelling of 57245 in words is "fifty-seven thousand, two hundred forty-five".