655235072 has 48 divisors (see below), whose sum is σ = 1345715280. Its totient is φ = 318726144.

The previous prime is 655235071. The next prime is 655235093. The reversal of 655235072 is 270532556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655235071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71453 + ... + 80099.

It is an arithmetic number, because the mean of its divisors is an integer number (28035735).

Almost surely, 2^655235072 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 655235072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672857640).

655235072 is an abundant number, since it is smaller than the sum of its proper divisors (690480208).

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

655235072 is an equidigital number, since it uses as much as digits as its factorization.

655235072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8706 (or 8686 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 655235072 is about 25597.5598837077. The cubic root of 655235072 is about 868.5584406447.

The spelling of 655235072 in words is "six hundred fifty-five million, two hundred thirty-five thousand, seventy-two".