2055520205220 has 24 divisors (see below), whose sum is σ = 5755456574784. Its totient is φ = 548138721376.

The previous prime is 2055520205177. The next prime is 2055520205237. The reversal of 2055520205220 is 225020255502.

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, 17129334984 + ... + 17129335103.

It is an arithmetic number, because the mean of its divisors is an integer number (239810690616).

Almost surely, 2^{2055520205220} is an apocalyptic number.

2055520205220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055520205220 is an abundant number, since it is smaller than the sum of its proper divisors (3699936369564).

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

2055520205220 is a wasteful number, since it uses less digits than its factorization.

2055520205220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34258670099 (or 34258670097 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The spelling of 2055520205220 in words is "two trillion, fifty-five billion, five hundred twenty million, two hundred five thousand, two hundred twenty".