525702131 has 4 divisors (see below), whose sum is σ = 525813264. Its totient is φ = 525591000.

The previous prime is 525702119. The next prime is 525702137. The reversal of 525702131 is 131207525.

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 525702131 - 2¹⁰ = 525701107 is a prime.

It is a super-3 number, since 3×525702131³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525702131.

It is not an unprimeable number, because it can be changed into a prime (525702137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48140 + ... + 58041.

It is an arithmetic number, because the mean of its divisors is an integer number (131453316).

Almost surely, 2^525702131 is an apocalyptic number.

525702131 is a deficient number, since it is larger than the sum of its proper divisors (111133).

525702131 is a wasteful number, since it uses less digits than its factorization.

525702131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111132.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 525702131 is about 22928.1951099514. The cubic root of 525702131 is about 807.0737940050.

Adding to 525702131 its reverse (131207525), we get a palindrome (656909656).

The spelling of 525702131 in words is "five hundred twenty-five million, seven hundred two thousand, one hundred thirty-one".