513020089249 has 4 divisors (see below), whose sum is σ = 513040121136. Its totient is φ = 513000057364.

The previous prime is 513020089237. The next prime is 513020089261. The reversal of 513020089249 is 942980020315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (513020089237) and next prime (513020089261).

It is a cyclic number.

It is not a de Polignac number, because 513020089249 - 2²⁷ = 512885871521 is a prime.

It is a super-3 number, since 3×513020089249³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513020089849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9977479 + ... + 10028764.

It is an arithmetic number, because the mean of its divisors is an integer number (128260030284).

Almost surely, 2^513020089249 is an apocalyptic number.

It is an amenable number.

513020089249 is a deficient number, since it is larger than the sum of its proper divisors (20031887).

513020089249 is a wasteful number, since it uses less digits than its factorization.

513020089249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20031886.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 513020089249 in words is "five hundred thirteen billion, twenty million, eighty-nine thousand, two hundred forty-nine".