55233154220 has 24 divisors (see below), whose sum is σ = 116500600944. Its totient is φ = 21995932736.

The previous prime is 55233154211. The next prime is 55233154231. The reversal of 55233154220 is 2245133255.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6078407 + ... + 6087486.

It is an arithmetic number, because the mean of its divisors is an integer number (4854191706).

Almost surely, 2^55233154220 is an apocalyptic number.

It is an amenable number.

55233154220 is an abundant number, since it is smaller than the sum of its proper divisors (61267446724).

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

55233154220 is a wasteful number, since it uses less digits than its factorization.

55233154220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12166129 (or 12166127 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 55233154220 its reverse (2245133255), we get a palindrome (57478287475).

The spelling of 55233154220 in words is "fifty-five billion, two hundred thirty-three million, one hundred fifty-four thousand, two hundred twenty".