525145431 has 8 divisors (see below), whose sum is σ = 701812720. Its totient is φ = 349287552.

The previous prime is 525145417. The next prime is 525145433. The reversal of 525145431 is 134541525.

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

It is not a de Polignac number, because 525145431 - 2¹⁷ = 525014359 is a prime.

It is a super-2 number, since 2×525145431² = 551555447400351522, 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 (525145433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200836 + ... + 203433.

It is an arithmetic number, because the mean of its divisors is an integer number (87726590).

Almost surely, 2^525145431 is an apocalyptic number.

525145431 is a deficient number, since it is larger than the sum of its proper divisors (176667289).

525145431 is a wasteful number, since it uses less digits than its factorization.

525145431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404705.

The product of its digits is 12000, while the sum is 30.

The square root of 525145431 is about 22916.0518196307. The cubic root of 525145431 is about 806.7888058309.

Adding to 525145431 its reverse (134541525), we get a palindrome (659686956).

The spelling of 525145431 in words is "five hundred twenty-five million, one hundred forty-five thousand, four hundred thirty-one".