552611321220 has 384 divisors, whose sum is σ = 1911884083200. Its totient is φ = 116460288000.

The previous prime is 552611321203. The next prime is 552611321221. The reversal of 552611321220 is 22123116255.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (552611321221) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 47547010 + ... + 47558630.

It is an arithmetic number, because the mean of its divisors is an integer number (4978864800).

Almost surely, 2^552611321220 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 552611321220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955942041600).

552611321220 is an abundant number, since it is smaller than the sum of its proper divisors (1359272761980).

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

552611321220 is a wasteful number, since it uses less digits than its factorization.

552611321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819 (or 11817 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 552611321220 its reverse (22123116255), we get a palindrome (574734437475).

The spelling of 552611321220 in words is "five hundred fifty-two billion, six hundred eleven million, three hundred twenty-one thousand, two hundred twenty".