655542272 has 96 divisors (see below), whose sum is σ = 1634592960. Its totient is φ = 255344640.

The previous prime is 655542259. The next prime is 655542281. The reversal of 655542272 is 272245556.

It is a happy 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, 155618 + ... + 159774.

It is an arithmetic number, because the mean of its divisors is an integer number (17027010).

Almost surely, 2^655542272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655542272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817296480).

655542272 is an abundant number, since it is smaller than the sum of its proper divisors (979050688).

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

655542272 is a wasteful number, since it uses less digits than its factorization.

655542272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197 (or 4177 counting only the distinct ones).

The product of its digits is 168000, while the sum is 38.

The square root of 655542272 is about 25603.5597525032. The cubic root of 655542272 is about 868.6941575686.

The spelling of 655542272 in words is "six hundred fifty-five million, five hundred forty-two thousand, two hundred seventy-two".