55134052220 has 24 divisors (see below), whose sum is σ = 124687780224. Its totient is φ = 20357188416.

The previous prime is 55134052219. The next prime is 55134052243. The reversal of 55134052220 is 2225043155.

It is a congruent number.

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, 106026764 + ... + 106027283.

It is an arithmetic number, because the mean of its divisors is an integer number (5195324176).

Almost surely, 2^55134052220 is an apocalyptic number.

It is an amenable number.

55134052220 is an abundant number, since it is smaller than the sum of its proper divisors (69553728004).

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

55134052220 is a wasteful number, since it uses less digits than its factorization.

55134052220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212054069 (or 212054067 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 55134052220 its reverse (2225043155), we get a palindrome (57359095375).

The spelling of 55134052220 in words is "fifty-five billion, one hundred thirty-four million, fifty-two thousand, two hundred twenty".