513442706225 has 6 divisors (see below), whose sum is σ = 636668955750. Its totient is φ = 410754164960.

The previous prime is 513442706209. The next prime is 513442706299. The reversal of 513442706225 is 522607244315.

It can be written as a sum of positive squares in 3 ways, for example, as 31764496 + 513410941729 = 5636^2 + 716527^2 .

It is not a de Polignac number, because 513442706225 - 2⁴ = 513442706209 is a prime.

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, 10268854100 + ... + 10268854149.

It is an arithmetic number, because the mean of its divisors is an integer number (106111492625).

Almost surely, 2^513442706225 is an apocalyptic number.

It is an amenable number.

513442706225 is a deficient number, since it is larger than the sum of its proper divisors (123226249525).

513442706225 is a wasteful number, since it uses less digits than its factorization.

513442706225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20537708259 (or 20537708254 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 513442706225 in words is "five hundred thirteen billion, four hundred forty-two million, seven hundred six thousand, two hundred twenty-five".