655925760 has 480 divisors, whose sum is σ = 2681078400. Its totient is φ = 148119552.

The previous prime is 655925759. The next prime is 655925791. The reversal of 655925760 is 67529556.

655925760 is a `hidden beast` number, since 6 + 5 + 592 + 57 + 6 + 0 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 7902679 + ... + 7902761.

It is an arithmetic number, because the mean of its divisors is an integer number (5585580).

Almost surely, 2^655925760 is an apocalyptic number.

655925760 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 655925760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340539200).

655925760 is an abundant number, since it is smaller than the sum of its proper divisors (2025152640).

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

655925760 is an equidigital number, since it uses as much as digits as its factorization.

655925760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 655925760 is about 25611.0476162144. The cubic root of 655925760 is about 868.8635180406.

The spelling of 655925760 in words is "six hundred fifty-five million, nine hundred twenty-five thousand, seven hundred sixty".