5075847421 has 2 divisors, whose sum is σ = 5075847422. Its totient is φ = 5075847420.

The previous prime is 5075847419. The next prime is 5075847457. The reversal of 5075847421 is 1247485705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5073712900 + 2134521 = 71230^2 + 1461^2 .

It is a cyclic number.

It is not a de Polignac number, because 5075847421 - 2¹ = 5075847419 is a prime.

Together with 5075847419, 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 (5075847401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2537923710 + 2537923711.

It is an arithmetic number, because the mean of its divisors is an integer number (2537923711).

Almost surely, 2^5075847421 is an apocalyptic number.

It is an amenable number.

5075847421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5075847421 is an equidigital number, since it uses as much as digits as its factorization.

5075847421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 313600, while the sum is 43.

The square root of 5075847421 is about 71244.9817250310. The cubic root of 5075847421 is about 1718.5790749148.

The spelling of 5075847421 in words is "five billion, seventy-five million, eight hundred forty-seven thousand, four hundred twenty-one".