513355355250 has 128 divisors (see below), whose sum is σ = 1298318112000. Its totient is φ = 135088588800.

The previous prime is 513355355213. The next prime is 513355355291. The reversal of 513355355250 is 52553553315.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25379641 + ... + 25399859.

It is an arithmetic number, because the mean of its divisors is an integer number (10143110250).

Almost surely, 2^513355355250 is an apocalyptic number.

513355355250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 513355355250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649159056000).

513355355250 is an abundant number, since it is smaller than the sum of its proper divisors (784962756750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513355355250 is a wasteful number, since it uses less digits than its factorization.

513355355250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20685 (or 20675 counting only the distinct ones).

The product of its (nonzero) digits is 843750, while the sum is 42.

The spelling of 513355355250 in words is "five hundred thirteen billion, three hundred fifty-five million, three hundred fifty-five thousand, two hundred fifty".