54562220 has 24 divisors (see below), whose sum is σ = 115719408. Its totient is φ = 21608000.

The previous prime is 54562217. The next prime is 54562271. The reversal of 54562220 is 2226545.

It is a self number, because there is not a number n which added to its sum of digits gives 54562220.

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 7 ways as a sum of consecutive naturals, for example, 11486 + ... + 15525.

It is an arithmetic number, because the mean of its divisors is an integer number (4821642).

Almost surely, 2^54562220 is an apocalyptic number.

It is an amenable number.

54562220 is an abundant number, since it is smaller than the sum of its proper divisors (61157188).

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

54562220 is a wasteful number, since it uses less digits than its factorization.

54562220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27121 (or 27119 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 54562220 is about 7386.6243981943. The cubic root of 54562220 is about 379.2835531167.

Adding to 54562220 its reverse (2226545), we get a palindrome (56788765).

The spelling of 54562220 in words is "fifty-four million, five hundred sixty-two thousand, two hundred twenty".