2251313999 has 4 divisors (see below), whose sum is σ = 2455978920. Its totient is φ = 2046649080.

The previous prime is 2251313989. The next prime is 2251314049. The reversal of 2251313999 is 9993131522.

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

It is a cyclic number.

It is not a de Polignac number, because 2251313999 - 2⁴ = 2251313983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251313969) 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, 102332444 + ... + 102332465.

It is an arithmetic number, because the mean of its divisors is an integer number (613994730).

Almost surely, 2^2251313999 is an apocalyptic number.

2251313999 is a deficient number, since it is larger than the sum of its proper divisors (204664921).

2251313999 is a wasteful number, since it uses less digits than its factorization.

2251313999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204664920.

The product of its digits is 131220, while the sum is 44.

The square root of 2251313999 is about 47448.0136465163. The cubic root of 2251313999 is about 1310.6257327656.

The spelling of 2251313999 in words is "two billion, two hundred fifty-one million, three hundred thirteen thousand, nine hundred ninety-nine".