655106500 has 96 divisors (see below), whose sum is σ = 1485993600. Its totient is φ = 252137600.

The previous prime is 655106489. The next prime is 655106519. The reversal of 655106500 is 5601556.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1563291 + ... + 1563709.

It is an arithmetic number, because the mean of its divisors is an integer number (15479100).

Almost surely, 2^655106500 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 655106500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742996800).

655106500 is an abundant number, since it is smaller than the sum of its proper divisors (830887100).

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

655106500 is a wasteful number, since it uses less digits than its factorization.

655106500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 655106500 is about 25595.0483492413. The cubic root of 655106500 is about 868.5016266322.

It can be divided in two parts, 65510 and 6500, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 655106500 in words is "six hundred fifty-five million, one hundred six thousand, five hundred".