525431223 has 24 divisors (see below), whose sum is σ = 807019200. Its totient is φ = 328280064.

The previous prime is 525431201. The next prime is 525431237. The reversal of 525431223 is 322134525.

It is a happy number.

525431223 is a `hidden beast` number, since 5 + 2 + 5 + 431 + 223 = 666.

It is not a de Polignac number, because 525431223 - 2¹⁸ = 525169079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525431723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29383 + ... + 43751.

It is an arithmetic number, because the mean of its divisors is an integer number (33625800).

Almost surely, 2^525431223 is an apocalyptic number.

525431223 is a deficient number, since it is larger than the sum of its proper divisors (281587977).

525431223 is a wasteful number, since it uses less digits than its factorization.

525431223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14631 (or 14628 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 525431223 is about 22922.2866005990. The cubic root of 525431223 is about 806.9351348020.

Adding to 525431223 its reverse (322134525), we get a palindrome (847565748).

The spelling of 525431223 in words is "five hundred twenty-five million, four hundred thirty-one thousand, two hundred twenty-three".