525423431 has 12 divisors (see below), whose sum is σ = 591519768. Its totient is φ = 463912944.

The previous prime is 525423427. The next prime is 525423463. The reversal of 525423431 is 134324525.

It is a happy number.

It is not a de Polignac number, because 525423431 - 2² = 525423427 is a prime.

It is a super-2 number, since 2×525423431² = 552139563687623522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525423394 and 525423403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525423401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31325 + ... + 45078.

It is an arithmetic number, because the mean of its divisors is an integer number (49293314).

Almost surely, 2^525423431 is an apocalyptic number.

525423431 is a deficient number, since it is larger than the sum of its proper divisors (66096337).

525423431 is a wasteful number, since it uses less digits than its factorization.

525423431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76462 (or 76439 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 525423431 is about 22922.1166343774. The cubic root of 525423431 is about 806.9311459071.

Adding to 525423431 its reverse (134324525), we get a palindrome (659747956).

The spelling of 525423431 in words is "five hundred twenty-five million, four hundred twenty-three thousand, four hundred thirty-one".