655256000 has 112 divisors (see below), whose sum is σ = 1854720192. Its totient is φ = 224640000.

The previous prime is 655255981. The next prime is 655256053. The reversal of 655256000 is 652556.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 50150 + ... + 61850.

Almost surely, 2^655256000 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 655256000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927360096).

655256000 is an abundant number, since it is smaller than the sum of its proper divisors (1199464192).

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

655256000 is a wasteful number, since it uses less digits than its factorization.

655256000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11735 (or 11715 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 655256000 is about 25597.9686694081. The cubic root of 655256000 is about 868.5676877065.

The spelling of 655256000 in words is "six hundred fifty-five million, two hundred fifty-six thousand".