51324405222 has 16 divisors (see below), whose sum is σ = 102659592960. Its totient is φ = 17106337992.

The previous prime is 51324405221. The next prime is 51324405229. The reversal of 51324405222 is 22250442315.

It is a self number, because there is not a number n which added to its sum of digits gives 51324405222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51324405221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386722 + ... + 502197.

It is an arithmetic number, because the mean of its divisors is an integer number (6416224560).

Almost surely, 2^51324405222 is an apocalyptic number.

51324405222 is an abundant number, since it is smaller than the sum of its proper divisors (51335187738).

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

51324405222 is a wasteful number, since it uses less digits than its factorization.

51324405222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898547.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 51324405222 its reverse (22250442315), we get a palindrome (73574847537).

The spelling of 51324405222 in words is "fifty-one billion, three hundred twenty-four million, four hundred five thousand, two hundred twenty-two".