2251986299 has 4 divisors (see below), whose sum is σ = 2252300736. Its totient is φ = 2251671864.

The previous prime is 2251986287. The next prime is 2251986301. The reversal of 2251986299 is 9926891522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9926891522 = 2 ⋅4963445761.

It is a cyclic number.

It is not a de Polignac number, because 2251986299 - 2⁸ = 2251986043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2251986299.

It is not an unprimeable number, because it can be changed into a prime (2251986259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146219 + ... + 160884.

It is an arithmetic number, because the mean of its divisors is an integer number (563075184).

Almost surely, 2^2251986299 is an apocalyptic number.

2251986299 is a deficient number, since it is larger than the sum of its proper divisors (314437).

2251986299 is an equidigital number, since it uses as much as digits as its factorization.

2251986299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314436.

The product of its digits is 1399680, while the sum is 53.

The square root of 2251986299 is about 47455.0977135228. The cubic root of 2251986299 is about 1310.7561819144.

The spelling of 2251986299 in words is "two billion, two hundred fifty-one million, nine hundred eighty-six thousand, two hundred ninety-nine".