525917 has 6 divisors (see below), whose sum is σ = 611838. Its totient is φ = 450744.

The previous prime is 525913. The next prime is 525923. The reversal of 525917 is 719525.

It can be written as a sum of positive squares in only one way, i.e., 337561 + 188356 = 581^2 + 434^2 .

It is not a de Polignac number, because 525917 - 2² = 525913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525917.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525917.

It is not an unprimeable number, because it can be changed into a prime (525913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5318 + ... + 5415.

It is an arithmetic number, because the mean of its divisors is an integer number (101973).

2⁵²⁵⁹¹⁷ is an apocalyptic number.

It is an amenable number.

525917 is a deficient number, since it is larger than the sum of its proper divisors (85921).

525917 is a wasteful number, since it uses less digits than its factorization.

525917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10747 (or 10740 counting only the distinct ones).

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

The square root of 525917 is about 725.2013513501. The cubic root of 525917 is about 80.7183736821.

The spelling of 525917 in words is "five hundred twenty-five thousand, nine hundred seventeen".