54821166 has 8 divisors (see below), whose sum is σ = 109642344. Its totient is φ = 18273720.

The previous prime is 54821147. The next prime is 54821171. The reversal of 54821166 is 66112845.

It is a sphenic number, since it is the product of 3 distinct primes.

54821166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568425 + ... + 4568436.

It is an arithmetic number, because the mean of its divisors is an integer number (13705293).

Almost surely, 2^54821166 is an apocalyptic number.

54821166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54821166 is a wasteful number, since it uses less digits than its factorization.

54821166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9136866.

The product of its digits is 11520, while the sum is 33.

The square root of 54821166 is about 7404.1316844043. The cubic root of 54821166 is about 379.8826184077.

The spelling of 54821166 in words is "fifty-four million, eight hundred twenty-one thousand, one hundred sixty-six".