655255559 has 8 divisors (see below), whose sum is σ = 749239680. Its totient is φ = 561365496.

The previous prime is 655255553. The next prime is 655255577. The reversal of 655255559 is 955552556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655255559 - 2¹⁶ = 655190023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655255553) 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 7 ways as a sum of consecutive naturals, for example, 7889 + ... + 37050.

It is an arithmetic number, because the mean of its divisors is an integer number (93654960).

Almost surely, 2^655255559 is an apocalyptic number.

655255559 is a deficient number, since it is larger than the sum of its proper divisors (93984121).

655255559 is a wasteful number, since it uses less digits than its factorization.

655255559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47029.

The product of its digits is 1687500, while the sum is 47.

The square root of 655255559 is about 25597.9600554419. The cubic root of 655255559 is about 868.5674928521.

The spelling of 655255559 in words is "six hundred fifty-five million, two hundred fifty-five thousand, five hundred fifty-nine".