515825 has 12 divisors (see below), whose sum is σ = 654720. Its totient is φ = 402960.

The previous prime is 515813. The next prime is 515839. The reversal of 515825 is 528515.

It is not a de Polignac number, because 515825 - 2⁶ = 515761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515794 and 515803.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 956 + ... + 1394.

It is an arithmetic number, because the mean of its divisors is an integer number (54560).

2⁵¹⁵⁸²⁵ is an apocalyptic number.

It is an amenable number.

515825 is a deficient number, since it is larger than the sum of its proper divisors (138895).

515825 is a wasteful number, since it uses less digits than its factorization.

515825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 491 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 515825 is about 718.2095794404. The cubic root of 515825 is about 80.1987246974.

The spelling of 515825 in words is "five hundred fifteen thousand, eight hundred twenty-five".