51433321422 has 32 divisors (see below), whose sum is σ = 120295878912. Its totient is φ = 14353484544.

The previous prime is 51433321417. The next prime is 51433321439. The reversal of 51433321422 is 22412333415.

It is a self number, because there is not a number n which added to its sum of digits gives 51433321422.

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, 14237763 + ... + 14241374.

It is an arithmetic number, because the mean of its divisors is an integer number (3759246216).

Almost surely, 2^51433321422 is an apocalyptic number.

51433321422 is an abundant number, since it is smaller than the sum of its proper divisors (68862557490).

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

51433321422 is a wasteful number, since it uses less digits than its factorization.

51433321422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28479192.

The product of its digits is 17280, while the sum is 30.

Adding to 51433321422 its reverse (22412333415), we get a palindrome (73845654837).

The spelling of 51433321422 in words is "fifty-one billion, four hundred thirty-three million, three hundred twenty-one thousand, four hundred twenty-two".