525971 has 4 divisors (see below), whose sum is σ = 532392. Its totient is φ = 519552.

The previous prime is 525961. The next prime is 525979. The reversal of 525971 is 179525.

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 525971 - 2¹⁰ = 524947 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (525979) 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, 3086 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (133098).

2⁵²⁵⁹⁷¹ is an apocalyptic number.

525971 is a deficient number, since it is larger than the sum of its proper divisors (6421).

525971 is an equidigital number, since it uses as much as digits as its factorization.

525971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6420.

The product of its digits is 3150, while the sum is 29.

The square root of 525971 is about 725.2385814337. The cubic root of 525971 is about 80.7211362492.

The spelling of 525971 in words is "five hundred twenty-five thousand, nine hundred seventy-one".