655072288 has 96 divisors (see below), whose sum is σ = 1480913280. Its totient is φ = 282562560.

The previous prime is 655072279. The next prime is 655072303. The reversal of 655072288 is 882270556.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491973 + ... + 1492411.

It is an arithmetic number, because the mean of its divisors is an integer number (15426180).

Almost surely, 2^655072288 is an apocalyptic number.

655072288 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655072288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740456640).

655072288 is an abundant number, since it is smaller than the sum of its proper divisors (825840992).

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

655072288 is a wasteful number, since it uses less digits than its factorization.

655072288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 655072288 is about 25594.3800081190. The cubic root of 655072288 is about 868.4865076172.

The spelling of 655072288 in words is "six hundred fifty-five million, seventy-two thousand, two hundred eighty-eight".