550213205520 has 160 divisors (see below), whose sum is σ = 1870073164800. Its totient is φ = 132714616320.

The previous prime is 550213205483. The next prime is 550213205533. The reversal of 550213205520 is 25502312055.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1707 + ... + 1049013.

It is an arithmetic number, because the mean of its divisors is an integer number (11687957280).

Almost surely, 2^550213205520 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 550213205520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935036582400).

550213205520 is an abundant number, since it is smaller than the sum of its proper divisors (1319859959280).

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

550213205520 is a wasteful number, since it uses less digits than its factorization.

550213205520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047533 (or 1047527 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 550213205520 its reverse (25502312055), we get a palindrome (575715517575).

The spelling of 550213205520 in words is "five hundred fifty billion, two hundred thirteen million, two hundred five thousand, five hundred twenty".