54800991 has 24 divisors (see below), whose sum is σ = 90754560. Its totient is φ = 31214736.

The previous prime is 54800989. The next prime is 54801011. The reversal of 54800991 is 19900845.

54800991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54800991 - 2¹ = 54800989 is a prime.

It is a super-2 number, since 2×54800991² = 6006297229164162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54800971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21406 + ... + 23828.

It is an arithmetic number, because the mean of its divisors is an integer number (3781440).

Almost surely, 2^54800991 is an apocalyptic number.

54800991 is a deficient number, since it is larger than the sum of its proper divisors (35953569).

54800991 is a wasteful number, since it uses less digits than its factorization.

54800991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 54800991 is about 7402.7691440433. The cubic root of 54800991 is about 379.8360118823.

The spelling of 54800991 in words is "fifty-four million, eight hundred thousand, nine hundred ninety-one".