47255185391 has 2 divisors, whose sum is σ = 47255185392. Its totient is φ = 47255185390.

The previous prime is 47255185339. The next prime is 47255185477. The reversal of 47255185391 is 19358155274.

47255185391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47255185391 - 2¹⁴ = 47255169007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47255185091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23627592695 + 23627592696.

It is an arithmetic number, because the mean of its divisors is an integer number (23627592696).

Almost surely, 2^47255185391 is an apocalyptic number.

47255185391 is a deficient number, since it is larger than the sum of its proper divisors (1).

47255185391 is an equidigital number, since it uses as much as digits as its factorization.

47255185391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512000, while the sum is 50.

The spelling of 47255185391 in words is "forty-seven billion, two hundred fifty-five million, one hundred eighty-five thousand, three hundred ninety-one".