655100560 has 20 divisors (see below), whose sum is σ = 1523108988. Its totient is φ = 262040192.

The previous prime is 655100557. The next prime is 655100561. The reversal of 655100560 is 65001556.

It can be written as a sum of positive squares in 2 ways, for example, as 217621504 + 437479056 = 14752^2 + 20916^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (655100561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4094299 + ... + 4094458.

Almost surely, 2^655100560 is an apocalyptic number.

It is an amenable number.

655100560 is an abundant number, since it is smaller than the sum of its proper divisors (868008428).

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

655100560 is a wasteful number, since it uses less digits than its factorization.

655100560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8188770 (or 8188764 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 655100560 is about 25594.9323109087. The cubic root of 655100560 is about 868.4990016568.

The spelling of 655100560 in words is "six hundred fifty-five million, one hundred thousand, five hundred sixty".