54220937191 has 2 divisors, whose sum is σ = 54220937192. Its totient is φ = 54220937190.

The previous prime is 54220937153. The next prime is 54220937231. The reversal of 54220937191 is 19173902245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54220937191 - 2¹¹ = 54220935143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54220937891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27110468595 + 27110468596.

It is an arithmetic number, because the mean of its divisors is an integer number (27110468596).

Almost surely, 2^54220937191 is an apocalyptic number.

54220937191 is a deficient number, since it is larger than the sum of its proper divisors (1).

54220937191 is an equidigital number, since it uses as much as digits as its factorization.

54220937191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 54220937191 in words is "fifty-four billion, two hundred twenty million, nine hundred thirty-seven thousand, one hundred ninety-one".