655503056 has 60 divisors (see below), whose sum is σ = 1388148132. Its totient is φ = 298066944.

The previous prime is 655503019. The next prime is 655503089. The reversal of 655503056 is 650305556.

It can be written as a sum of positive squares in 2 ways, for example, as 44622400 + 610880656 = 6680^2 + 24716^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3925085 + ... + 3925251.

Almost surely, 2^655503056 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 655503056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694074066).

655503056 is an abundant number, since it is smaller than the sum of its proper divisors (732645076).

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

655503056 is a wasteful number, since it uses less digits than its factorization.

655503056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 35.

The square root of 655503056 is about 25602.7939100404. The cubic root of 655503056 is about 868.6768348161.

The spelling of 655503056 in words is "six hundred fifty-five million, five hundred three thousand, fifty-six".