5551523221220 has 48 divisors (see below), whose sum is σ = 11764611331200. Its totient is φ = 2200401565440.

The previous prime is 5551523221219. The next prime is 5551523221253. The reversal of 5551523221220 is 221223251555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468080 + ... + 3364839.

It is an arithmetic number, because the mean of its divisors is an integer number (245096069400).

Almost surely, 2^{5551523221220} is an apocalyptic number.

It is an amenable number.

5551523221220 is an abundant number, since it is smaller than the sum of its proper divisors (6213088109980).

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

5551523221220 is a wasteful number, since it uses less digits than its factorization.

5551523221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833588 (or 3833586 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 5551523221220 its reverse (221223251555), we get a palindrome (5772746472775).

The spelling of 5551523221220 in words is "five trillion, five hundred fifty-one billion, five hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty".