525423111 has 8 divisors (see below), whose sum is σ = 702681984. Its totient is φ = 349223160.

The previous prime is 525423091. The next prime is 525423133. The reversal of 525423111 is 111324525.

It is a happy number.

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

It is not a de Polignac number, because 525423111 - 2¹⁸ = 525160967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525423181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263571 + ... + 265556.

It is an arithmetic number, because the mean of its divisors is an integer number (87835248).

Almost surely, 2^525423111 is an apocalyptic number.

525423111 is a deficient number, since it is larger than the sum of its proper divisors (177258873).

525423111 is a wasteful number, since it uses less digits than its factorization.

525423111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529461.

The product of its digits is 1200, while the sum is 24.

The square root of 525423111 is about 22922.1096542181. The cubic root of 525423111 is about 806.9309820913.

Adding to 525423111 its reverse (111324525), we get a palindrome (636747636).

The spelling of 525423111 in words is "five hundred twenty-five million, four hundred twenty-three thousand, one hundred eleven".