55053533191 has 2 divisors, whose sum is σ = 55053533192. Its totient is φ = 55053533190.

The previous prime is 55053533189. The next prime is 55053533233. The reversal of 55053533191 is 19133535055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55053533191 - 2¹ = 55053533189 is a prime.

Together with 55053533189, 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 (55053533111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27526766595 + 27526766596.

It is an arithmetic number, because the mean of its divisors is an integer number (27526766596).

Almost surely, 2^55053533191 is an apocalyptic number.

55053533191 is a deficient number, since it is larger than the sum of its proper divisors (1).

55053533191 is an equidigital number, since it uses as much as digits as its factorization.

55053533191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151875, while the sum is 40.

The spelling of 55053533191 in words is "fifty-five billion, fifty-three million, five hundred thirty-three thousand, one hundred ninety-one".