54891812 has 12 divisors (see below), whose sum is σ = 96402096. Its totient is φ = 27348360.

The previous prime is 54891803. The next prime is 54891841. The reversal of 54891812 is 21819845.

It is a super-2 number, since 2×54891812² = 6026222049286688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23114 + ... + 25377.

It is an arithmetic number, because the mean of its divisors is an integer number (8033508).

Almost surely, 2^54891812 is an apocalyptic number.

It is an amenable number.

54891812 is a deficient number, since it is larger than the sum of its proper divisors (41510284).

54891812 is a wasteful number, since it uses less digits than its factorization.

54891812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48778 (or 48776 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 54891812 is about 7408.9008631510. The cubic root of 54891812 is about 380.0457285689.

The spelling of 54891812 in words is "fifty-four million, eight hundred ninety-one thousand, eight hundred twelve".