54000891 has 56 divisors (see below), whose sum is σ = 98825040. Its totient is φ = 29042496.

The previous prime is 54000887. The next prime is 54000911. The reversal of 54000891 is 19800045.

It is not a de Polignac number, because 54000891 - 2² = 54000887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

54000891 is a modest number, since divided by 891 gives 54 as remainder.

It is not an unprimeable number, because it can be changed into a prime (54000811) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3176515 + ... + 3176531.

Almost surely, 2^54000891 is an apocalyptic number.

54000891 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

54000891 is a deficient number, since it is larger than the sum of its proper divisors (44824149).

54000891 is an frugal number, since it uses more digits than its factorization.

54000891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 54000891 is about 7348.5298529706. The cubic root of 54000891 is about 377.9783938268.

The spelling of 54000891 in words is "fifty-four million, eight hundred ninety-one", and thus it is an aban number.