525316431 has 4 divisors (see below), whose sum is σ = 700421912. Its totient is φ = 350210952.

The previous prime is 525316409. The next prime is 525316447. The reversal of 525316431 is 134613525.

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

It is not a de Polignac number, because 525316431 - 2⁵ = 525316399 is a prime.

It is a super-2 number, since 2×525316431² = 551914705357155522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525316531) 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, 87552736 + ... + 87552741.

It is an arithmetic number, because the mean of its divisors is an integer number (175105478).

Almost surely, 2^525316431 is an apocalyptic number.

525316431 is a deficient number, since it is larger than the sum of its proper divisors (175105481).

525316431 is a wasteful number, since it uses less digits than its factorization.

525316431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175105480.

The product of its digits is 10800, while the sum is 30.

The square root of 525316431 is about 22919.7825251463. The cubic root of 525316431 is about 806.8763662829.

Adding to 525316431 its reverse (134613525), we get a palindrome (659929956).

The spelling of 525316431 in words is "five hundred twenty-five million, three hundred sixteen thousand, four hundred thirty-one".