511925 has 6 divisors (see below), whose sum is σ = 634818. Its totient is φ = 409520.

The previous prime is 511909. The next prime is 511933. The reversal of 511925 is 529115.

It can be written as a sum of positive squares in 3 ways, for example, as 78961 + 432964 = 281^2 + 658^2 .

It is not a de Polignac number, because 511925 - 2⁴ = 511909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 511925.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 511925.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10214 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (105803).

2⁵¹¹⁹²⁵ is an apocalyptic number.

It is an amenable number.

511925 is a deficient number, since it is larger than the sum of its proper divisors (122893).

511925 is a wasteful number, since it uses less digits than its factorization.

511925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20487 (or 20482 counting only the distinct ones).

The product of its digits is 450, while the sum is 23.

The square root of 511925 is about 715.4893430373. The cubic root of 511925 is about 79.9960935592.

The spelling of 511925 in words is "five hundred eleven thousand, nine hundred twenty-five".