2251287359 has 4 divisors (see below), whose sum is σ = 2251382280. Its totient is φ = 2251192440.

The previous prime is 2251287343. The next prime is 2251287397. The reversal of 2251287359 is 9537821522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2251287359 - 2⁴ = 2251287343 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 (2251287329) 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, 22112 + ... + 70650.

It is an arithmetic number, because the mean of its divisors is an integer number (562845570).

Almost surely, 2^2251287359 is an apocalyptic number.

2251287359 is a deficient number, since it is larger than the sum of its proper divisors (94921).

2251287359 is an equidigital number, since it uses as much as digits as its factorization.

2251287359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94920.

The product of its digits is 302400, while the sum is 44.

The square root of 2251287359 is about 47447.7329173903. The cubic root of 2251287359 is about 1310.6205631613.

The spelling of 2251287359 in words is "two billion, two hundred fifty-one million, two hundred eighty-seven thousand, three hundred fifty-nine".