5261116530 has 96 divisors (see below), whose sum is σ = 13367942784. Its totient is φ = 1324968192.

The previous prime is 5261116517. The next prime is 5261116559. The reversal of 5261116530 is 356111625.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4948779 + ... + 4949841.

It is an arithmetic number, because the mean of its divisors is an integer number (139249404).

Almost surely, 2^5261116530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5261116530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6683971392).

5261116530 is an abundant number, since it is smaller than the sum of its proper divisors (8106826254).

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

5261116530 is a wasteful number, since it uses less digits than its factorization.

5261116530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 5261116530 is about 72533.5545109986. The cubic root of 5261116530 is about 1739.2391673006.

The spelling of 5261116530 in words is "five billion, two hundred sixty-one million, one hundred sixteen thousand, five hundred thirty".