511442004025 has 6 divisors (see below), whose sum is σ = 634188085022. Its totient is φ = 409153603200.

The previous prime is 511442004001. The next prime is 511442004067. The reversal of 511442004025 is 520400244115.

It can be written as a sum of positive squares in 3 ways, for example, as 6664436496 + 504777567529 = 81636^2 + 710477^2 .

It is not a de Polignac number, because 511442004025 - 2²⁹ = 510905133113 is a prime.

It is a super-2 number, since 2×511442004025² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 511442003984 and 511442004002.

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, 10228840056 + ... + 10228840105.

Almost surely, 2^511442004025 is an apocalyptic number.

It is an amenable number.

511442004025 is a deficient number, since it is larger than the sum of its proper divisors (122746080997).

511442004025 is a wasteful number, since it uses less digits than its factorization.

511442004025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20457680171 (or 20457680166 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 511442004025 in words is "five hundred eleven billion, four hundred forty-two million, four thousand, twenty-five".