2251532330 has 16 divisors (see below), whose sum is σ = 4228965504. Its totient is φ = 861455760.

The previous prime is 2251532323. The next prime is 2251532359. The reversal of 2251532330 is 332351522.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2251532330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4894406 + ... + 4894865.

It is an arithmetic number, because the mean of its divisors is an integer number (264310344).

Almost surely, 2^2251532330 is an apocalyptic number.

2251532330 is a deficient number, since it is larger than the sum of its proper divisors (1977433174).

2251532330 is a wasteful number, since it uses less digits than its factorization.

2251532330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9789301.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2251532330 is about 47450.3143298335. The cubic root of 2251532330 is about 1310.6680992794.

Adding to 2251532330 its reverse (332351522), we get a palindrome (2583883852).

It can be divided in two parts, 22515 and 32330, that added together give a palindrome (54845).

The spelling of 2251532330 in words is "two billion, two hundred fifty-one million, five hundred thirty-two thousand, three hundred thirty".