553201220 has 72 divisors (see below), whose sum is σ = 1372412160. Its totient is φ = 185677440.

The previous prime is 553201219. The next prime is 553201223. The reversal of 553201220 is 22102355.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 553201192 and 553201201.

It is not an unprimeable number, because it can be changed into a prime (553201223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29741 + ... + 44619.

It is an arithmetic number, because the mean of its divisors is an integer number (19061280).

Almost surely, 2^553201220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553201220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686206080).

553201220 is an abundant number, since it is smaller than the sum of its proper divisors (819210940).

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

553201220 is a wasteful number, since it uses less digits than its factorization.

553201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14925 (or 14910 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 553201220 is about 23520.2300158821. The cubic root of 553201220 is about 820.9077890209.

Adding to 553201220 its reverse (22102355), we get a palindrome (575303575).

The spelling of 553201220 in words is "five hundred fifty-three million, two hundred one thousand, two hundred twenty".