5051320050400 has 144 divisors (see below), whose sum is σ = 13282060050000. Its totient is φ = 1864829583360.

The previous prime is 5051320050397. The next prime is 5051320050409. The reversal of 5051320050400 is 40500231505.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5051320050409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79517851 + ... + 79581349.

It is an arithmetic number, because the mean of its divisors is an integer number (92236528125).

Almost surely, 2^{5051320050400} is an apocalyptic number.

5051320050400 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 5051320050400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6641030025000).

5051320050400 is an abundant number, since it is smaller than the sum of its proper divisors (8230739999600).

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

5051320050400 is a wasteful number, since it uses less digits than its factorization.

5051320050400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71181 (or 71168 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 5051320050400 its reverse (40500231505), we get a palindrome (5091820281905).

The spelling of 5051320050400 in words is "five trillion, fifty-one billion, three hundred twenty million, fifty thousand, four hundred".