51355030122 has 96 divisors (see below), whose sum is σ = 122244595200. Its totient is φ = 15452220960.

The previous prime is 51355030121. The next prime is 51355030123. The reversal of 51355030122 is 22103055315.

It is a happy number.

51355030122 is a `hidden beast` number, since 5 + 1 + 35 + 503 + 0 + 122 = 666.

It is an interprime number because it is at equal distance from previous prime (51355030121) and next prime (51355030123).

It is not an unprimeable number, because it can be changed into a prime (51355030121) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 25334473 + ... + 25336499.

It is an arithmetic number, because the mean of its divisors is an integer number (1273381200).

Almost surely, 2^51355030122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51355030122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61122297600).

51355030122 is an abundant number, since it is smaller than the sum of its proper divisors (70889565078).

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

51355030122 is a wasteful number, since it uses less digits than its factorization.

51355030122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888 (or 2885 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 51355030122 its reverse (22103055315), we get a palindrome (73458085437).

The spelling of 51355030122 in words is "fifty-one billion, three hundred fifty-five million, thirty thousand, one hundred twenty-two".