525442031 has 4 divisors (see below), whose sum is σ = 525495000. Its totient is φ = 525389064.

The previous prime is 525442009. The next prime is 525442063. The reversal of 525442031 is 130244525.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525442031 is a prime.

It is a super-2 number, since 2×525442031² = 552178655882809922, 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 (525442081) 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, 6656 + ... + 33093.

It is an arithmetic number, because the mean of its divisors is an integer number (131373750).

Almost surely, 2^525442031 is an apocalyptic number.

525442031 is a deficient number, since it is larger than the sum of its proper divisors (52969).

525442031 is a wasteful number, since it uses less digits than its factorization.

525442031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52968.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 525442031 is about 22922.5223524812. The cubic root of 525442031 is about 806.9406675877.

Adding to 525442031 its reverse (130244525), we get a palindrome (655686556).

The spelling of 525442031 in words is "five hundred twenty-five million, four hundred forty-two thousand, thirty-one".