2251051445 has 16 divisors (see below), whose sum is σ = 2718509040. Its totient is φ = 1789377024.

The previous prime is 2251051421. The next prime is 2251051459. The reversal of 2251051445 is 5441501522.

It can be written as a sum of positive squares in 8 ways, for example, as 1115159236 + 1135892209 = 33394^2 + 33703^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251051445 - 2⁸ = 2251051189 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, 647171 + ... + 650639.

It is an arithmetic number, because the mean of its divisors is an integer number (169906815).

Almost surely, 2^2251051445 is an apocalyptic number.

It is an amenable number.

2251051445 is a deficient number, since it is larger than the sum of its proper divisors (467457595).

2251051445 is a wasteful number, since it uses less digits than its factorization.

2251051445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2251051445 is about 47445.2468114563. The cubic root of 2251051445 is about 1310.5747812758.

Adding to 2251051445 its reverse (5441501522), we get a palindrome (7692552967).

The spelling of 2251051445 in words is "two billion, two hundred fifty-one million, fifty-one thousand, four hundred forty-five".