2251152330 has 64 divisors (see below), whose sum is σ = 6209187840. Its totient is φ = 511665984.

The previous prime is 2251152313. The next prime is 2251152367. The reversal of 2251152330 is 332511522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2251152330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7647 + ... + 67533.

It is an arithmetic number, because the mean of its divisors is an integer number (97018560).

Almost surely, 2^2251152330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2251152330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3104593920).

2251152330 is an abundant number, since it is smaller than the sum of its proper divisors (3958035510).

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

2251152330 is a wasteful number, since it uses less digits than its factorization.

2251152330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60083.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2251152330 is about 47446.3099724309. The cubic root of 2251152330 is about 1310.5943595877.

Adding to 2251152330 its reverse (332511522), we get a palindrome (2583663852).

The spelling of 2251152330 in words is "two billion, two hundred fifty-one million, one hundred fifty-two thousand, three hundred thirty".