55520133515224 has 32 divisors (see below), whose sum is σ = 124144397925120. Its totient is φ = 22759806285216.

The previous prime is 55520133515221. The next prime is 55520133515233. The reversal of 55520133515224 is 42251533102555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55520133515221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21552845574 + ... + 21552848149.

It is an arithmetic number, because the mean of its divisors is an integer number (3879512435160).

Almost surely, 2^{55520133515224} is an apocalyptic number.

It is an amenable number.

55520133515224 is an abundant number, since it is smaller than the sum of its proper divisors (68624264409896).

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

55520133515224 is a wasteful number, since it uses less digits than its factorization.

55520133515224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43105693759 (or 43105693755 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

Adding to 55520133515224 its reverse (42251533102555), we get a palindrome (97771666617779).

The spelling of 55520133515224 in words is "fifty-five trillion, five hundred twenty billion, one hundred thirty-three million, five hundred fifteen thousand, two hundred twenty-four".