5120555220 has 72 divisors (see below), whose sum is σ = 16944389280. Its totient is φ = 1241346240.

The previous prime is 5120555191. The next prime is 5120555257. The reversal of 5120555220 is 225550215.

It is a super-2 number, since 2×5120555220² = 52440171522138496800, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1291090 + ... + 1295049.

It is an arithmetic number, because the mean of its divisors is an integer number (235338740).

Almost surely, 2^5120555220 is an apocalyptic number.

It is an amenable number.

5120555220 is an abundant number, since it is smaller than the sum of its proper divisors (11823834060).

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

5120555220 is a wasteful number, since it uses less digits than its factorization.

5120555220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586165 (or 2586160 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 5120555220 is about 71558.0548925137. The cubic root of 5120555220 is about 1723.6100510876.

The spelling of 5120555220 in words is "five billion, one hundred twenty million, five hundred fifty-five thousand, two hundred twenty".