51035504212000 has 384 divisors, whose sum is σ = 156459298125312. Its totient is φ = 15894590976000.

The previous prime is 51035504211977. The next prime is 51035504212067. The reversal of 51035504212000 is 21240553015.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 51035504212000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 393251122 + ... + 393380878.

It is an arithmetic number, because the mean of its divisors is an integer number (407446088868).

Almost surely, 2^{51035504212000} is an apocalyptic number.

51035504212000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51035504212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78229649062656).

51035504212000 is an abundant number, since it is smaller than the sum of its proper divisors (105423793913312).

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

51035504212000 is a wasteful number, since it uses less digits than its factorization.

51035504212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131077 (or 131059 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 51035504212000 its reverse (21240553015), we get a palindrome (51056744765015).

The spelling of 51035504212000 in words is "fifty-one trillion, thirty-five billion, five hundred four million, two hundred twelve thousand".