655563265 has 24 divisors (see below), whose sum is σ = 955069632. Its totient is φ = 423079680.

The previous prime is 655563263. The next prime is 655563269. The reversal of 655563265 is 562365556.

It is not a de Polignac number, because 655563265 - 2¹ = 655563263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655563263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22291 + ... + 42520.

It is an arithmetic number, because the mean of its divisors is an integer number (39794568).

Almost surely, 2^655563265 is an apocalyptic number.

It is an amenable number.

655563265 is a deficient number, since it is larger than the sum of its proper divisors (299506367).

655563265 is a wasteful number, since it uses less digits than its factorization.

655563265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64857 (or 64840 counting only the distinct ones).

The product of its digits is 810000, while the sum is 43.

The square root of 655563265 is about 25603.9697117459. The cubic root of 655563265 is about 868.7034304523.

The spelling of 655563265 in words is "six hundred fifty-five million, five hundred sixty-three thousand, two hundred sixty-five".