51002200524 has 96 divisors (see below), whose sum is σ = 133442862336. Its totient is φ = 15025063680.

The previous prime is 51002200511. The next prime is 51002200547. The reversal of 51002200524 is 42500220015.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51002200524.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7092859 + ... + 7100045.

It is an arithmetic number, because the mean of its divisors is an integer number (1390029816).

Almost surely, 2^51002200524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51002200524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66721431168).

51002200524 is an abundant number, since it is smaller than the sum of its proper divisors (82440661812).

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

51002200524 is a wasteful number, since it uses less digits than its factorization.

51002200524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695 (or 8693 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 51002200524 its reverse (42500220015), we get a palindrome (93502420539).

The spelling of 51002200524 in words is "fifty-one billion, two million, two hundred thousand, five hundred twenty-four".