5478367221 has 12 divisors (see below), whose sum is σ = 7914854220. Its totient is φ = 3651480000.

The previous prime is 5478367201. The next prime is 5478367267. The reversal of 5478367221 is 1227638745.

5478367221 is a `hidden beast` number, since 547 + 8 + 36 + 72 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3955026321 + 1523340900 = 62889^2 + 39030^2 .

It is not a de Polignac number, because 5478367221 - 2⁵ = 5478367189 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5478367201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16530 + ... + 105971.

It is an arithmetic number, because the mean of its divisors is an integer number (659571185).

Almost surely, 2^5478367221 is an apocalyptic number.

It is an amenable number.

5478367221 is a deficient number, since it is larger than the sum of its proper divisors (2436486999).

5478367221 is a wasteful number, since it uses less digits than its factorization.

5478367221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127476 (or 127473 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 5478367221 is about 74015.9930082682. The cubic root of 5478367221 is about 1762.8568466532.

The spelling of 5478367221 in words is "five billion, four hundred seventy-eight million, three hundred sixty-seven thousand, two hundred twenty-one".