54091116021 has 16 divisors (see below), whose sum is σ = 72516204288. Its totient is φ = 35863531200.

The previous prime is 54091116007. The next prime is 54091116049. The reversal of 54091116021 is 12061119045.

It is not a de Polignac number, because 54091116021 - 2⁵ = 54091115989 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54091116021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54091111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603236 + ... + 1636626.

It is an arithmetic number, because the mean of its divisors is an integer number (4532262768).

Almost surely, 2^54091116021 is an apocalyptic number.

It is an amenable number.

54091116021 is a deficient number, since it is larger than the sum of its proper divisors (18425088267).

54091116021 is a wasteful number, since it uses less digits than its factorization.

54091116021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36332.

The product of its (nonzero) digits is 2160, while the sum is 30.

The spelling of 54091116021 in words is "fifty-four billion, ninety-one million, one hundred sixteen thousand, twenty-one".