655224259 has 4 divisors (see below), whose sum is σ = 655291080. Its totient is φ = 655157440.

The previous prime is 655224257. The next prime is 655224263. The reversal of 655224259 is 952422556.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 655224259 - 2¹ = 655224257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655224257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15502 + ... + 39379.

It is an arithmetic number, because the mean of its divisors is an integer number (163822770).

Almost surely, 2^655224259 is an apocalyptic number.

655224259 is a deficient number, since it is larger than the sum of its proper divisors (66821).

655224259 is a wasteful number, since it uses less digits than its factorization.

655224259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66820.

The product of its digits is 216000, while the sum is 40.

The square root of 655224259 is about 25597.3486712980. The cubic root of 655224259 is about 868.5536628306.

The spelling of 655224259 in words is "six hundred fifty-five million, two hundred twenty-four thousand, two hundred fifty-nine".