655652272 has 40 divisors (see below), whose sum is σ = 1392000192. Its totient is φ = 296692800.

The previous prime is 655652267. The next prime is 655652293. The reversal of 655652272 is 272256556.

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, 31747 + ... + 48157.

Almost surely, 2^655652272 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 655652272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696000096).

655652272 is an abundant number, since it is smaller than the sum of its proper divisors (736347920).

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

655652272 is a wasteful number, since it uses less digits than its factorization.

655652272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16657 (or 16651 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 655652272 is about 25605.7078011915. The cubic root of 655652272 is about 868.7427438139.

The spelling of 655652272 in words is "six hundred fifty-five million, six hundred fifty-two thousand, two hundred seventy-two".