513144325 has 6 divisors (see below), whose sum is σ = 636298994. Its totient is φ = 410515440.

The previous prime is 513144311. The next prime is 513144349. The reversal of 513144325 is 523441315.

It can be written as a sum of positive squares in 3 ways, for example, as 124344801 + 388799524 = 11151^2 + 19718^2 .

It is not a de Polignac number, because 513144325 - 2¹¹ = 513142277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513144293 and 513144302.

It is a congruent number.

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, 10262862 + ... + 10262911.

Almost surely, 2^513144325 is an apocalyptic number.

It is an amenable number.

513144325 is a deficient number, since it is larger than the sum of its proper divisors (123154669).

513144325 is a wasteful number, since it uses less digits than its factorization.

513144325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20525783 (or 20525778 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 513144325 is about 22652.6891339638. The cubic root of 513144325 is about 800.5955591308.

The spelling of 513144325 in words is "five hundred thirteen million, one hundred forty-four thousand, three hundred twenty-five".