655452000 has 720 divisors, whose sum is σ = 2920645728. Its totient is φ = 141004800.

The previous prime is 655451917. The next prime is 655452001. The reversal of 655452000 is 254556.

655452000 is a `hidden beast` number, since 655 + 4 + 5 + 2 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655452001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 38555992 + ... + 38556008.

Almost surely, 2^655452000 is an apocalyptic number.

655452000 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 655452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460322864).

655452000 is an abundant number, since it is smaller than the sum of its proper divisors (2265193728).

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

655452000 is a wasteful number, since it uses less digits than its factorization.

655452000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 655452000 is about 25601.7968119427. The cubic root of 655452000 is about 868.6542809849.

The spelling of 655452000 in words is "six hundred fifty-five million, four hundred fifty-two thousand".