51450322332 has 48 divisors (see below), whose sum is σ = 124059019392. Its totient is φ = 16585396800.

The previous prime is 51450322321. The next prime is 51450322349. The reversal of 51450322332 is 23322305415.

It is a self number, because there is not a number n which added to its sum of digits gives 51450322332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441498 + ... + 545729.

It is an arithmetic number, because the mean of its divisors is an integer number (2584562904).

Almost surely, 2^51450322332 is an apocalyptic number.

It is an amenable number.

51450322332 is an abundant number, since it is smaller than the sum of its proper divisors (72608697060).

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

51450322332 is a wasteful number, since it uses less digits than its factorization.

51450322332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987378 (or 987376 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 51450322332 its reverse (23322305415), we get a palindrome (74772627747).

The spelling of 51450322332 in words is "fifty-one billion, four hundred fifty million, three hundred twenty-two thousand, three hundred thirty-two".