525533431 has 4 divisors (see below), whose sum is σ = 525760264. Its totient is φ = 525306600.

The previous prime is 525533429. The next prime is 525533441. The reversal of 525533431 is 134335525.

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

It is a cyclic number.

It is not a de Polignac number, because 525533431 - 2¹ = 525533429 is a prime.

It is a super-2 number, since 2×525533431² = 552370774197263522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525533393 and 525533402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525533441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109905 + ... + 114586.

It is an arithmetic number, because the mean of its divisors is an integer number (131440066).

Almost surely, 2^525533431 is an apocalyptic number.

525533431 is a deficient number, since it is larger than the sum of its proper divisors (226833).

525533431 is a wasteful number, since it uses less digits than its factorization.

525533431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226832.

The product of its digits is 27000, while the sum is 31.

The square root of 525533431 is about 22924.5159381829. The cubic root of 525533431 is about 806.9874536564.

Adding to 525533431 its reverse (134335525), we get a palindrome (659868956).

The spelling of 525533431 in words is "five hundred twenty-five million, five hundred thirty-three thousand, four hundred thirty-one".