2251028445 has 16 divisors (see below), whose sum is σ = 3609052800. Its totient is φ = 1198079424.

The previous prime is 2251028383. The next prime is 2251028467. The reversal of 2251028445 is 5448201522.

It is not a de Polignac number, because 2251028445 - 2⁸ = 2251028189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146770 + ... + 161379.

It is an arithmetic number, because the mean of its divisors is an integer number (225565800).

Almost surely, 2^2251028445 is an apocalyptic number.

It is an amenable number.

2251028445 is a deficient number, since it is larger than the sum of its proper divisors (1358024355).

2251028445 is a wasteful number, since it uses less digits than its factorization.

2251028445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308644.

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 2251028445 is about 47445.0044261775. The cubic root of 2251028445 is about 1310.5703176842.

Adding to 2251028445 its reverse (5448201522), we get a palindrome (7699229967).

The spelling of 2251028445 in words is "two billion, two hundred fifty-one million, twenty-eight thousand, four hundred forty-five".