655605650 has 24 divisors (see below), whose sum is σ = 1393631040. Its totient is φ = 224778960.

The previous prime is 655605647. The next prime is 655605719. The reversal of 655605650 is 56506556.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936230 + ... + 936929.

It is an arithmetic number, because the mean of its divisors is an integer number (58067960).

Almost surely, 2^655605650 is an apocalyptic number.

655605650 is an abundant number, since it is smaller than the sum of its proper divisors (738025390).

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

655605650 is a wasteful number, since it uses less digits than its factorization.

655605650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873178 (or 1873173 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 655605650 is about 25604.7974020495. The cubic root of 655605650 is about 868.7221518599.

The spelling of 655605650 in words is "six hundred fifty-five million, six hundred five thousand, six hundred fifty".