2251591027 has 32 divisors (see below), whose sum is σ = 2764274688. Its totient is φ = 1790186496.

The previous prime is 2251591009. The next prime is 2251591031. The reversal of 2251591027 is 7201951522.

It is not a de Polignac number, because 2251591027 - 2¹⁵ = 2251558259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2251590983 and 2251591001.

It is not an unprimeable number, because it can be changed into a prime (2251591427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2722188 + ... + 2723014.

It is an arithmetic number, because the mean of its divisors is an integer number (86383584).

Almost surely, 2^2251591027 is an apocalyptic number.

2251591027 is a deficient number, since it is larger than the sum of its proper divisors (512683661).

2251591027 is a wasteful number, since it uses less digits than its factorization.

2251591027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2251591027 is about 47450.9328359306. The cubic root of 2251591027 is about 1310.6794887993.

The spelling of 2251591027 in words is "two billion, two hundred fifty-one million, five hundred ninety-one thousand, twenty-seven".