525863 has 8 divisors (see below), whose sum is σ = 596400. Its totient is φ = 459648.

The previous prime is 525839. The next prime is 525869. The reversal of 525863 is 368525.

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

It is not a de Polignac number, because 525863 - 2⁸ = 525607 is a prime.

It is a d-powerful number, because it can be written as 5² + 2¹⁷ + 8⁴ + 5⁸ + 6² + 3² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525869) 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, 818 + ... + 1311.

It is an arithmetic number, because the mean of its divisors is an integer number (74550).

2⁵²⁵⁸⁶³ is an apocalyptic number.

525863 is a deficient number, since it is larger than the sum of its proper divisors (70537).

525863 is a wasteful number, since it uses less digits than its factorization.

525863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161.

The product of its digits is 7200, while the sum is 29.

The square root of 525863 is about 725.1641193551. The cubic root of 525863 is about 80.7156109259.

The spelling of 525863 in words is "five hundred twenty-five thousand, eight hundred sixty-three".