54447220 has 12 divisors (see below), whose sum is σ = 114339204. Its totient is φ = 21778880.

The previous prime is 54447203. The next prime is 54447223. The reversal of 54447220 is 2274445.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 16032016 = 6198^2 + 4004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54447223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361161 + ... + 1361200.

It is an arithmetic number, because the mean of its divisors is an integer number (9528267).

Almost surely, 2^54447220 is an apocalyptic number.

It is an amenable number.

54447220 is an abundant number, since it is smaller than the sum of its proper divisors (59891984).

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

54447220 is a wasteful number, since it uses less digits than its factorization.

54447220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722370 (or 2722368 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 54447220 is about 7378.8359515577. The cubic root of 54447220 is about 379.0168955369.

The spelling of 54447220 in words is "fifty-four million, four hundred forty-seven thousand, two hundred twenty".