525315 has 16 divisors (see below), whose sum is σ = 960768. Its totient is φ = 240096.

The previous prime is 525313. The next prime is 525353. The reversal of 525315 is 513525.

It is not a de Polignac number, because 525315 - 2¹ = 525313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

525315 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 525291 and 525300.

It is not an unprimeable number, because it can be changed into a prime (525313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2397 + ... + 2606.

It is an arithmetic number, because the mean of its divisors is an integer number (60048).

2⁵²⁵³¹⁵ is an apocalyptic number.

525315 is a deficient number, since it is larger than the sum of its proper divisors (435453).

525315 is a wasteful number, since it uses less digits than its factorization.

525315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018.

The product of its digits is 750, while the sum is 21.

The square root of 525315 is about 724.7861753648. The cubic root of 525315 is about 80.6875633619.

The spelling of 525315 in words is "five hundred twenty-five thousand, three hundred fifteen".