525783 has 4 divisors (see below), whose sum is σ = 701048. Its totient is φ = 350520.

The previous prime is 525781. The next prime is 525809. The reversal of 525783 is 387525.

It is a happy number.

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

It is not a de Polignac number, because 525783 - 2¹ = 525781 is a prime.

It is a D-number.

It is a Duffinian number.

525783 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 525783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525781) 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, 87628 + ... + 87633.

It is an arithmetic number, because the mean of its divisors is an integer number (175262).

2⁵²⁵⁷⁸³ is an apocalyptic number.

525783 is a deficient number, since it is larger than the sum of its proper divisors (175265).

525783 is a wasteful number, since it uses less digits than its factorization.

525783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175264.

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

The square root of 525783 is about 725.1089573299. The cubic root of 525783 is about 80.7115176060.

The spelling of 525783 in words is "five hundred twenty-five thousand, seven hundred eighty-three".