54067221 has 12 divisors (see below), whose sum is σ = 84104748. Its totient is φ = 33272064.

The previous prime is 54067201. The next prime is 54067229. The reversal of 54067221 is 12276045.

It can be written as a sum of positive squares in 2 ways, for example, as 15800625 + 38266596 = 3975^2 + 6186^2 .

It is not a de Polignac number, because 54067221 - 2⁹ = 54066709 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54067229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230940 + ... + 231173.

It is an arithmetic number, because the mean of its divisors is an integer number (7008729).

Almost surely, 2^54067221 is an apocalyptic number.

It is an amenable number.

54067221 is a deficient number, since it is larger than the sum of its proper divisors (30037527).

54067221 is a wasteful number, since it uses less digits than its factorization.

54067221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462132 (or 462129 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 54067221 is about 7353.0416155493. The cubic root of 54067221 is about 378.1330891059.

The spelling of 54067221 in words is "fifty-four million, sixty-seven thousand, two hundred twenty-one".