220525100 has 18 divisors (see below), whose sum is σ = 478539684. Its totient is φ = 88210000.

The previous prime is 220525087. The next prime is 220525111. The reversal of 220525100 is 1525022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1102526 + ... + 1102725.

It is an arithmetic number, because the mean of its divisors is an integer number (26585538).

Almost surely, 2^220525100 is an apocalyptic number.

220525100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220525100 is an abundant number, since it is smaller than the sum of its proper divisors (258014584).

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

220525100 is a wasteful number, since it uses less digits than its factorization.

220525100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205265 (or 2205258 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 220525100 is about 14850.0875418295. The cubic root of 220525100 is about 604.1609843831.

The spelling of 220525100 in words is "two hundred twenty million, five hundred twenty-five thousand, one hundred".