525131 has 4 divisors (see below), whose sum is σ = 536352. Its totient is φ = 513912.

The previous prime is 525127. The next prime is 525137. The reversal of 525131 is 131525.

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 525131 - 2² = 525127 is a prime.

It is a super-2 number, since 2×525131² = 551525134322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5540 + ... + 5633.

It is an arithmetic number, because the mean of its divisors is an integer number (134088).

2⁵²⁵¹³¹ is an apocalyptic number.

525131 is a deficient number, since it is larger than the sum of its proper divisors (11221).

525131 is a wasteful number, since it uses less digits than its factorization.

525131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11220.

The product of its digits is 150, while the sum is 17.

The square root of 525131 is about 724.6592302593. The cubic root of 525131 is about 80.6781415576.

Adding to 525131 its reverse (131525), we get a palindrome (656656).

It can be divided in two parts, 525 and 131, that added together give a palindrome (656).

The spelling of 525131 in words is "five hundred twenty-five thousand, one hundred thirty-one".