54118810591 has 2 divisors, whose sum is σ = 54118810592. Its totient is φ = 54118810590.

The previous prime is 54118810519. The next prime is 54118810619. The reversal of 54118810591 is 19501881145.

Together with previous prime (54118810519) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54118810591 - 2¹¹ = 54118808543 is a prime.

It is the 232635-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54118880591) by changing a digit.

It is a nontrivial repunit in base 232634.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27059405295 + 27059405296.

It is an arithmetic number, because the mean of its divisors is an integer number (27059405296).

Almost surely, 2^54118810591 is an apocalyptic number.

54118810591 is a deficient number, since it is larger than the sum of its proper divisors (1).

54118810591 is an equidigital number, since it uses as much as digits as its factorization.

54118810591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 43.

The spelling of 54118810591 in words is "fifty-four billion, one hundred eighteen million, eight hundred ten thousand, five hundred ninety-one".