2251445322 has 16 divisors (see below), whose sum is σ = 5146160832. Its totient is φ = 643270080.

The previous prime is 2251445311. The next prime is 2251445323. The reversal of 2251445322 is 2235441522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251445322.

It is not an unprimeable number, because it can be changed into a prime (2251445323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26802879 + ... + 26802962.

It is an arithmetic number, because the mean of its divisors is an integer number (321635052).

Almost surely, 2^2251445322 is an apocalyptic number.

2251445322 is an abundant number, since it is smaller than the sum of its proper divisors (2894715510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251445322 is a wasteful number, since it uses less digits than its factorization.

2251445322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53605853.

The product of its digits is 19200, while the sum is 30.

The square root of 2251445322 is about 47449.3974882717. The cubic root of 2251445322 is about 1310.6512159510.

Adding to 2251445322 its reverse (2235441522), we get a palindrome (4486886844).

The spelling of 2251445322 in words is "two billion, two hundred fifty-one million, four hundred forty-five thousand, three hundred twenty-two".