525265 has 8 divisors (see below), whose sum is σ = 678888. Its totient is φ = 387840.

The previous prime is 525257. The next prime is 525299. The reversal of 525265 is 562525.

It can be written as a sum of positive squares in 4 ways, for example, as 1089 + 524176 = 33^2 + 724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 525265 - 2³ = 525257 is a prime.

It is a Duffinian number.

525265 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3976 + ... + 4105.

It is an arithmetic number, because the mean of its divisors is an integer number (84861).

2⁵²⁵²⁶⁵ is an apocalyptic number.

It is an amenable number.

525265 is a deficient number, since it is larger than the sum of its proper divisors (153623).

525265 is a wasteful number, since it uses less digits than its factorization.

525265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8099.

The product of its digits is 3000, while the sum is 25.

The square root of 525265 is about 724.7516816124. The cubic root of 525265 is about 80.6850033067.

The spelling of 525265 in words is "five hundred twenty-five thousand, two hundred sixty-five".