655505552 has 20 divisors (see below), whose sum is σ = 1367737980. Its totient is φ = 302540928.

The previous prime is 655505551. The next prime is 655505603. The reversal of 655505552 is 255505556.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 145829776 + 509675776 = 12076^2 + 22576^2 .

It is not an unprimeable number, because it can be changed into a prime (655505551) 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, 1575527 + ... + 1575942.

It is an arithmetic number, because the mean of its divisors is an integer number (68386899).

Almost surely, 2^655505552 is an apocalyptic number.

It is an amenable number.

655505552 is an abundant number, since it is smaller than the sum of its proper divisors (712232428).

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

655505552 is a wasteful number, since it uses less digits than its factorization.

655505552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151490 (or 3151484 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 38.

The square root of 655505552 is about 25602.8426546741. The cubic root of 655505552 is about 868.6779373865.

The spelling of 655505552 in words is "six hundred fifty-five million, five hundred five thousand, five hundred fifty-two".