525715 has 4 divisors (see below), whose sum is σ = 630864. Its totient is φ = 420568.

The previous prime is 525713. The next prime is 525719. The reversal of 525715 is 517525.

It is a happy number.

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 525715 - 2¹ = 525713 is a prime.

It is a super-2 number, since 2×525715² = 552752522450, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 525715.

It is not an unprimeable number, because it can be changed into a prime (525713) 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, 52567 + ... + 52576.

It is an arithmetic number, because the mean of its divisors is an integer number (157716).

2⁵²⁵⁷¹⁵ is an apocalyptic number.

525715 is a deficient number, since it is larger than the sum of its proper divisors (105149).

525715 is a wasteful number, since it uses less digits than its factorization.

525715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105148.

The product of its digits is 1750, while the sum is 25.

The square root of 525715 is about 725.0620663088. The cubic root of 525715 is about 80.7080379577.

The spelling of 525715 in words is "five hundred twenty-five thousand, seven hundred fifteen".