511425 has 18 divisors (see below), whose sum is σ = 916422. Its totient is φ = 272640.

The previous prime is 511417. The next prime is 511439. The reversal of 511425 is 524115.

It can be written as a sum of positive squares in 3 ways, for example, as 106929 + 404496 = 327^2 + 636^2 .

It is not a de Polignac number, because 511425 - 2³ = 511417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 511398 and 511407.

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 511425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 912 + ... + 1361.

2⁵¹¹⁴²⁵ is an apocalyptic number.

It is an amenable number.

511425 is a deficient number, since it is larger than the sum of its proper divisors (404997).

511425 is a wasteful number, since it uses less digits than its factorization.

511425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289 (or 2281 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 511425 is about 715.1398464636. The cubic root of 511425 is about 79.9700408654.

Subtracting from 511425 its product of digits (200), we obtain a square (511225 = 715²).

The spelling of 511425 in words is "five hundred eleven thousand, four hundred twenty-five".