655599000 has 128 divisors (see below), whose sum is σ = 2337753600. Its totient is φ = 149846400.

The previous prime is 655598987. The next prime is 655599053. The reversal of 655599000 is 995556.

655599000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 655599000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5391 + ... + 36609.

It is an arithmetic number, because the mean of its divisors is an integer number (18263700).

Almost surely, 2^655599000 is an apocalyptic number.

655599000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655599000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168876800).

655599000 is an abundant number, since it is smaller than the sum of its proper divisors (1682154600).

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

655599000 is a wasteful number, since it uses less digits than its factorization.

655599000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31250 (or 31236 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 39.

The square root of 655599000 is about 25604.6675432430. The cubic root of 655599000 is about 868.7192146157.

The spelling of 655599000 in words is "six hundred fifty-five million, five hundred ninety-nine thousand".