2251647893 has 16 divisors (see below), whose sum is σ = 2538880512. Its totient is φ = 1978344000.

The previous prime is 2251647851. The next prime is 2251647911. The reversal of 2251647893 is 3987461522.

2251647893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2251647893 - 2¹⁸ = 2251385749 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 (2251647823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287003 + ... + 294743.

It is an arithmetic number, because the mean of its divisors is an integer number (158680032).

Almost surely, 2^2251647893 is an apocalyptic number.

It is an amenable number.

2251647893 is a deficient number, since it is larger than the sum of its proper divisors (287232619).

2251647893 is a wasteful number, since it uses less digits than its factorization.

2251647893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8636.

The product of its digits is 725760, while the sum is 47.

The square root of 2251647893 is about 47451.5320405991. The cubic root of 2251647893 is about 1310.6905228446.

The spelling of 2251647893 in words is "two billion, two hundred fifty-one million, six hundred forty-seven thousand, eight hundred ninety-three".