5055204213421 has 2 divisors, whose sum is σ = 5055204213422. Its totient is φ = 5055204213420.

The previous prime is 5055204213419. The next prime is 5055204213469. The reversal of 5055204213421 is 1243124025505.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4393576519396 + 661627694025 = 2096086^2 + 813405^2 .

It is a cyclic number.

It is not a de Polignac number, because 5055204213421 - 2¹ = 5055204213419 is a prime.

Together with 5055204213419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5055204213221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527602106710 + 2527602106711.

It is an arithmetic number, because the mean of its divisors is an integer number (2527602106711).

Almost surely, 2^{5055204213421} is an apocalyptic number.

It is an amenable number.

5055204213421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5055204213421 is an equidigital number, since it uses as much as digits as its factorization.

5055204213421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 5055204213421 its reverse (1243124025505), we get a palindrome (6298328238926).

It can be divided in two parts, 5055204 and 213421, that added together give a palindrome (5268625).

The spelling of 5055204213421 in words is "five trillion, fifty-five billion, two hundred four million, two hundred thirteen thousand, four hundred twenty-one".