5051321554421 has 32 divisors (see below), whose sum is σ = 5241550003200. Its totient is φ = 4865297508864.

The previous prime is 5051321554393. The next prime is 5051321554511. The reversal of 5051321554421 is 1244551231505.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5051321554421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5051321554121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819617486 + ... + 819623648.

It is an arithmetic number, because the mean of its divisors is an integer number (163798437600).

Almost surely, 2^{5051321554421} is an apocalyptic number.

It is an amenable number.

5051321554421 is a deficient number, since it is larger than the sum of its proper divisors (190228448779).

5051321554421 is a wasteful number, since it uses less digits than its factorization.

5051321554421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 5051321554421 its reverse (1244551231505), we get a palindrome (6295872785926).

The spelling of 5051321554421 in words is "five trillion, fifty-one billion, three hundred twenty-one million, five hundred fifty-four thousand, four hundred twenty-one".