51510451422 has 32 divisors (see below), whose sum is σ = 103591716480. Its totient is φ = 17075228000.

The previous prime is 51510451411. The next prime is 51510451451. The reversal of 51510451422 is 22415401515.

It is a self number, because there is not a number n which added to its sum of digits gives 51510451422.

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, 957229 + ... + 1009607.

It is an arithmetic number, because the mean of its divisors is an integer number (3237241140).

Almost surely, 2^51510451422 is an apocalyptic number.

51510451422 is an abundant number, since it is smaller than the sum of its proper divisors (52081265058).

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

51510451422 is a wasteful number, since it uses less digits than its factorization.

51510451422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53288.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 51510451422 its reverse (22415401515), we get a palindrome (73925852937).

The spelling of 51510451422 in words is "fifty-one billion, five hundred ten million, four hundred fifty-one thousand, four hundred twenty-two".