655603200 has 480 divisors, whose sum is σ = 2760299520. Its totient is φ = 149299200.

The previous prime is 655603199. The next prime is 655603211. The reversal of 655603200 is 2306556.

655603200 is a `hidden beast` number, since 6 + 55 + 603 + 2 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2419065 + ... + 2419335.

It is an arithmetic number, because the mean of its divisors is an integer number (5750624).

Almost surely, 2^655603200 is an apocalyptic number.

655603200 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 655603200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1380149760).

655603200 is an abundant number, since it is smaller than the sum of its proper divisors (2104696320).

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

655603200 is a wasteful number, since it uses less digits than its factorization.

655603200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 655603200 is about 25604.7495594079. The cubic root of 655603200 is about 868.7210697196.

Adding to 655603200 its reverse (2306556), we get a palindrome (657909756).

The spelling of 655603200 in words is "six hundred fifty-five million, six hundred three thousand, two hundred".