2531113530 has 64 divisors (see below), whose sum is σ = 6692616576. Its totient is φ = 607520000.

The previous prime is 2531113483. The next prime is 2531113537. The reversal of 2531113530 is 353111352.

It is a self number, because there is not a number n which added to its sum of digits gives 2531113530.

It is not an unprimeable number, because it can be changed into a prime (2531113537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4641 + ... + 71300.

It is an arithmetic number, because the mean of its divisors is an integer number (104572134).

Almost surely, 2^2531113530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531113530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3346308288).

2531113530 is an abundant number, since it is smaller than the sum of its proper divisors (4161503046).

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

2531113530 is a wasteful number, since it uses less digits than its factorization.

2531113530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76063.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 2531113530 is about 50310.1732257006. The cubic root of 2531113530 is about 1362.8159520904.

Adding to 2531113530 its reverse (353111352), we get a palindrome (2884224882).

The spelling of 2531113530 in words is "two billion, five hundred thirty-one million, one hundred thirteen thousand, five hundred thirty".