525873 has 4 divisors (see below), whose sum is σ = 701168. Its totient is φ = 350580.

The previous prime is 525871. The next prime is 525887. The reversal of 525873 is 378525.

It is a happy number.

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 not a de Polignac number, because 525873 - 2¹ = 525871 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

525873 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 525873.

It is not an unprimeable number, because it can be changed into a prime (525871) 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, 87643 + ... + 87648.

It is an arithmetic number, because the mean of its divisors is an integer number (175292).

2⁵²⁵⁸⁷³ is an apocalyptic number.

It is an amenable number.

525873 is a deficient number, since it is larger than the sum of its proper divisors (175295).

525873 is a wasteful number, since it uses less digits than its factorization.

525873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175294.

The product of its digits is 8400, while the sum is 30.

The square root of 525873 is about 725.1710143132. The cubic root of 525873 is about 80.7161225617.

It can be divided in two parts, 5 and 25873, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 525873 in words is "five hundred twenty-five thousand, eight hundred seventy-three".