511383025 has 6 divisors (see below), whose sum is σ = 634114982. Its totient is φ = 409106400.

The previous prime is 511383011. The next prime is 511383083. The reversal of 511383025 is 520383115.

It can be written as a sum of positive squares in 3 ways, for example, as 57820816 + 453562209 = 7604^2 + 21297^2 .

It is not a de Polignac number, because 511383025 - 2¹¹ = 511380977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 511382984 and 511383002.

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, 10227636 + ... + 10227685.

Almost surely, 2^511383025 is an apocalyptic number.

It is an amenable number.

511383025 is a deficient number, since it is larger than the sum of its proper divisors (122731957).

511383025 is a wasteful number, since it uses less digits than its factorization.

511383025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20455331 (or 20455326 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 511383025 is about 22613.7795381489. The cubic root of 511383025 is about 799.6785296925.

The spelling of 511383025 in words is "five hundred eleven million, three hundred eighty-three thousand, twenty-five".