220181552 has 20 divisors (see below), whose sum is σ = 451696536. Its totient is φ = 103614720.

The previous prime is 220181539. The next prime is 220181587. The reversal of 220181552 is 255181022.

220181552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220181552² = 96959831682257408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404474 + ... + 405017.

Almost surely, 2^220181552 is an apocalyptic number.

It is an amenable number.

220181552 is an abundant number, since it is smaller than the sum of its proper divisors (231514984).

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

220181552 is a wasteful number, since it uses less digits than its factorization.

220181552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809516 (or 809510 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 220181552 is about 14838.5158287478. The cubic root of 220181552 is about 603.8470878792.

The spelling of 220181552 in words is "two hundred twenty million, one hundred eighty-one thousand, five hundred fifty-two".