2220504500 has 24 divisors (see below), whose sum is σ = 4849582920. Its totient is φ = 888201600.

The previous prime is 2220504499. The next prime is 2220504541. The reversal of 2220504500 is 54050222.

It can be written as a sum of positive squares in 4 ways, for example, as 11316496 + 2209188004 = 3364^2 + 47002^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2220005 + ... + 2221004.

It is an arithmetic number, because the mean of its divisors is an integer number (202065955).

Almost surely, 2^2220504500 is an apocalyptic number.

2220504500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220504500 is an abundant number, since it is smaller than the sum of its proper divisors (2629078420).

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

2220504500 is a wasteful number, since it uses less digits than its factorization.

2220504500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441028 (or 4441016 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2220504500 is about 47122.2293615232. The cubic root of 2220504500 is about 1304.6195609620.

Adding to 2220504500 its reverse (54050222), we get a palindrome (2274554722).

The spelling of 2220504500 in words is "two billion, two hundred twenty million, five hundred four thousand, five hundred".