525940 has 12 divisors (see below), whose sum is σ = 1104516. Its totient is φ = 210368.

The previous prime is 525937. The next prime is 525947. The reversal of 525940 is 49525.

It can be written as a sum of positive squares in 2 ways, for example, as 219024 + 306916 = 468^2 + 554^2 .

It is a super-2 number, since 2×525940² = 553225767200, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525947) 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, 13129 + ... + 13168.

It is an arithmetic number, because the mean of its divisors is an integer number (92043).

2⁵²⁵⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

525940 is an abundant number, since it is smaller than the sum of its proper divisors (578576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525940 is a wasteful number, since it uses less digits than its factorization.

525940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26306 (or 26304 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 525940 is about 725.2172088416. The cubic root of 525940 is about 80.7195503542.

The spelling of 525940 in words is "five hundred twenty-five thousand, nine hundred forty".