525959 has 8 divisors (see below), whose sum is σ = 605568. Its totient is φ = 447480.

The previous prime is 525953. The next prime is 525961. The reversal of 525959 is 959525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424 + ... + 1754.

It is an arithmetic number, because the mean of its divisors is an integer number (75696).

2⁵²⁵⁹⁵⁹ is an apocalyptic number.

525959 is a deficient number, since it is larger than the sum of its proper divisors (79609).

525959 is a wasteful number, since it uses less digits than its factorization.

525959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565.

The product of its digits is 20250, while the sum is 35.

The square root of 525959 is about 725.2303082470. The cubic root of 525959 is about 80.7205223617.

It can be divided in two parts, 5 and 25959, that multiplied together give a triangular number (129795 = T₅₀₉).

The spelling of 525959 in words is "five hundred twenty-five thousand, nine hundred fifty-nine".