51350455054500 has 768 divisors, whose sum is σ = 178341875712000. Its totient is φ = 11471424652800.

The previous prime is 51350455054499. The next prime is 51350455054543. The reversal of 51350455054500 is 545055405315.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 28703439606 + ... + 28703441394.

It is an arithmetic number, because the mean of its divisors is an integer number (232215984000).

Almost surely, 2^{51350455054500} is an apocalyptic number.

51350455054500 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 51350455054500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89170937856000).

51350455054500 is an abundant number, since it is smaller than the sum of its proper divisors (126991420657500).

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

51350455054500 is a wasteful number, since it uses less digits than its factorization.

51350455054500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 42.

The spelling of 51350455054500 in words is "fifty-one trillion, three hundred fifty billion, four hundred fifty-five million, fifty-four thousand, five hundred".