54591460091 has 4 divisors (see below), whose sum is σ = 62390240112. Its totient is φ = 46792680072.

The previous prime is 54591460087. The next prime is 54591460111. The reversal of 54591460091 is 19006419545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19006419545 = 5 ⋅3801283909.

It is a cyclic number.

It is not a de Polignac number, because 54591460091 - 2² = 54591460087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54591462091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3899390000 + ... + 3899390013.

It is an arithmetic number, because the mean of its divisors is an integer number (15597560028).

Almost surely, 2^54591460091 is an apocalyptic number.

54591460091 is a deficient number, since it is larger than the sum of its proper divisors (7798780021).

54591460091 is an equidigital number, since it uses as much as digits as its factorization.

54591460091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7798780020.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 54591460091 in words is "fifty-four billion, five hundred ninety-one million, four hundred sixty thousand, ninety-one".