525499 has 4 divisors (see below), whose sum is σ = 565936. Its totient is φ = 485064.

The previous prime is 525493. The next prime is 525517. The reversal of 525499 is 994525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525499 - 2³ = 525491 is a prime.

It is a super-2 number, since 2×525499² = 552298398002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525491) 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, 20199 + ... + 20224.

It is an arithmetic number, because the mean of its divisors is an integer number (141484).

2⁵²⁵⁴⁹⁹ is an apocalyptic number.

525499 is a deficient number, since it is larger than the sum of its proper divisors (40437).

525499 is a wasteful number, since it uses less digits than its factorization.

525499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40436.

The product of its digits is 16200, while the sum is 34.

The square root of 525499 is about 724.9130982401. The cubic root of 525499 is about 80.6969829664.

It can be divided in two parts, 525 and 499, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 525499 in words is "five hundred twenty-five thousand, four hundred ninety-nine".