2251500113 has 4 divisors (see below), whose sum is σ = 2251704420. Its totient is φ = 2251295808.

The previous prime is 2251500103. The next prime is 2251500137. The reversal of 2251500113 is 3110051522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2011343104 + 240157009 = 44848^2 + 15497^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251500113 - 2⁸ = 2251499857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251500103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84620 + ... + 107997.

It is an arithmetic number, because the mean of its divisors is an integer number (562926105).

Almost surely, 2^2251500113 is an apocalyptic number.

It is an amenable number.

2251500113 is a deficient number, since it is larger than the sum of its proper divisors (204307).

2251500113 is a wasteful number, since it uses less digits than its factorization.

2251500113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204306.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2251500113 is about 47449.9748472009. The cubic root of 2251500113 is about 1310.6618478338.

Adding to 2251500113 its reverse (3110051522), we get a palindrome (5361551635).

The spelling of 2251500113 in words is "two billion, two hundred fifty-one million, five hundred thousand, one hundred thirteen".