57489 has 4 divisors (see below), whose sum is σ = 76656. Its totient is φ = 38324.

The previous prime is 57487. The next prime is 57493. The reversal of 57489 is 98475.

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 57489 - 2¹ = 57487 is a prime.

It is a D-number.

57489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (57487) 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, 9579 + ... + 9584.

It is an arithmetic number, because the mean of its divisors is an integer number (19164).

2⁵⁷⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

57489 is a deficient number, since it is larger than the sum of its proper divisors (19167).

57489 is a wasteful number, since it uses less digits than its factorization.

57489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19166.

The product of its digits is 10080, while the sum is 33.

The square root of 57489 is about 239.7686384830. The cubic root of 57489 is about 38.5947517183.

The spelling of 57489 in words is "fifty-seven thousand, four hundred eighty-nine".