2251445332 has 24 divisors (see below), whose sum is σ = 4021391360. Its totient is φ = 1102701600.

The previous prime is 2251445323. The next prime is 2251445347. The reversal of 2251445332 is 2335441522.

It is a junction number, because it is equal to n+sod(n) for n = 2251445294 and 2251445303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12082 + ... + 68182.

Almost surely, 2^2251445332 is an apocalyptic number.

It is an amenable number.

2251445332 is a deficient number, since it is larger than the sum of its proper divisors (1769946028).

2251445332 is a wasteful number, since it uses less digits than its factorization.

2251445332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56311 (or 56309 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 2251445332 is about 47449.3975936471. The cubic root of 2251445332 is about 1310.6512178915.

Adding to 2251445332 its reverse (2335441522), we get a palindrome (4586886854).

The spelling of 2251445332 in words is "two billion, two hundred fifty-one million, four hundred forty-five thousand, three hundred thirty-two".