525489 has 8 divisors (see below), whose sum is σ = 707520. Its totient is φ = 346896.

The previous prime is 525467. The next prime is 525491. The reversal of 525489 is 984525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 525489 - 2⁵ = 525457 is a prime.

It is a super-2 number, since 2×525489² = 552277378242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (525409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477 + ... + 1130.

It is an arithmetic number, because the mean of its divisors is an integer number (88440).

2⁵²⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

525489 is a deficient number, since it is larger than the sum of its proper divisors (182031).

525489 is a wasteful number, since it uses less digits than its factorization.

525489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its digits is 14400, while the sum is 33.

The square root of 525489 is about 724.9062008288. The cubic root of 525489 is about 80.6964710879.

The spelling of 525489 in words is "five hundred twenty-five thousand, four hundred eighty-nine".