55533222120 has 32 divisors (see below), whose sum is σ = 166599666720. Its totient is φ = 14808859200.

The previous prime is 55533222089. The next prime is 55533222131. The reversal of 55533222120 is 2122233555.

55533222120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 231388306 + ... + 231388545.

It is an arithmetic number, because the mean of its divisors is an integer number (5206239585).

Almost surely, 2^55533222120 is an apocalyptic number.

It is an amenable number.

55533222120 is an abundant number, since it is smaller than the sum of its proper divisors (111066444600).

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

55533222120 is a wasteful number, since it uses less digits than its factorization.

55533222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462776865 (or 462776861 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 55533222120 its reverse (2122233555), we get a palindrome (57655455675).

The spelling of 55533222120 in words is "fifty-five billion, five hundred thirty-three million, two hundred twenty-two thousand, one hundred twenty".