512825 has 12 divisors (see below), whose sum is σ = 646908. Its totient is φ = 403200.

The previous prime is 512821. The next prime is 512843. The reversal of 512825 is 528215.

It can be written as a sum of positive squares in 6 ways, for example, as 169 + 512656 = 13^2 + 716^2 .

It is not a de Polignac number, because 512825 - 2² = 512821 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 512825.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 512825.

It is not an unprimeable number, because it can be changed into a prime (512821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685 + ... + 1965.

It is an arithmetic number, because the mean of its divisors is an integer number (53909).

2⁵¹²⁸²⁵ is an apocalyptic number.

It is an amenable number.

512825 is a deficient number, since it is larger than the sum of its proper divisors (134083).

512825 is a wasteful number, since it uses less digits than its factorization.

512825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 359 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 512825 is about 716.1180070352. The cubic root of 512825 is about 80.0429456917.

The spelling of 512825 in words is "five hundred twelve thousand, eight hundred twenty-five".