220525284 has 36 divisors (see below), whose sum is σ = 598570224. Its totient is φ = 63007056.

The previous prime is 220525271. The next prime is 220525297. The reversal of 220525284 is 482525022.

220525284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220525271) and next prime (220525297).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186934 + ... + 188109.

Almost surely, 2^220525284 is an apocalyptic number.

It is an amenable number.

220525284 is an abundant number, since it is smaller than the sum of its proper divisors (378044940).

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

220525284 is a wasteful number, since it uses less digits than its factorization.

220525284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375064 (or 375055 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 220525284 is about 14850.0937370779. The cubic root of 220525284 is about 604.1611524147.

The spelling of 220525284 in words is "two hundred twenty million, five hundred twenty-five thousand, two hundred eighty-four".