51251422322 has 8 divisors (see below), whose sum is σ = 76878345456. Its totient is φ = 25625307172.

The previous prime is 51251422319. The next prime is 51251422361. The reversal of 51251422322 is 22322415215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4988 + ... + 320199.

It is an arithmetic number, because the mean of its divisors is an integer number (9609793182).

Almost surely, 2^51251422322 is an apocalyptic number.

51251422322 is a deficient number, since it is larger than the sum of its proper divisors (25626923134).

51251422322 is a wasteful number, since it uses less digits than its factorization.

51251422322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403992.

The product of its digits is 9600, while the sum is 29.

Adding to 51251422322 its reverse (22322415215), we get a palindrome (73573837537).

The spelling of 51251422322 in words is "fifty-one billion, two hundred fifty-one million, four hundred twenty-two thousand, three hundred twenty-two".