5201061391 has 2 divisors, whose sum is σ = 5201061392. Its totient is φ = 5201061390.

The previous prime is 5201061389. The next prime is 5201061443. The reversal of 5201061391 is 1931601025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5201061391 - 2¹ = 5201061389 is a prime.

Together with 5201061389, 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 (5201061091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600530695 + 2600530696.

It is an arithmetic number, because the mean of its divisors is an integer number (2600530696).

Almost surely, 2^5201061391 is an apocalyptic number.

5201061391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5201061391 is an equidigital number, since it uses as much as digits as its factorization.

5201061391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 5201061391 is about 72118.3845562281. The cubic root of 5201061391 is about 1732.5960768154.

The spelling of 5201061391 in words is "five billion, two hundred one million, sixty-one thousand, three hundred ninety-one".