655582240 has 24 divisors (see below), whose sum is σ = 1548813420. Its totient is φ = 262232832.

The previous prime is 655582199. The next prime is 655582247. The reversal of 655582240 is 42285556.

It can be written as a sum of positive squares in 2 ways, for example, as 655564816 + 17424 = 25604^2 + 132^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 655582240.

It is not an unprimeable number, because it can be changed into a prime (655582247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048535 + ... + 2048854.

Almost surely, 2^655582240 is an apocalyptic number.

It is an amenable number.

655582240 is an abundant number, since it is smaller than the sum of its proper divisors (893231180).

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

655582240 is a wasteful number, since it uses less digits than its factorization.

655582240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097404 (or 4097396 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 655582240 is about 25604.3402570736. The cubic root of 655582240 is about 868.7118117886.

The spelling of 655582240 in words is "six hundred fifty-five million, five hundred eighty-two thousand, two hundred forty".