655224055 has 4 divisors (see below), whose sum is σ = 786268872. Its totient is φ = 524179240.

The previous prime is 655224049. The next prime is 655224077. The reversal of 655224055 is 550422556.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 655224055 - 2⁷ = 655223927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655224055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65522401 + ... + 65522410.

It is an arithmetic number, because the mean of its divisors is an integer number (196567218).

Almost surely, 2^655224055 is an apocalyptic number.

655224055 is a deficient number, since it is larger than the sum of its proper divisors (131044817).

655224055 is a wasteful number, since it uses less digits than its factorization.

655224055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131044816.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 655224055 is about 25597.3446865100. The cubic root of 655224055 is about 868.5535726910.

The spelling of 655224055 in words is "six hundred fifty-five million, two hundred twenty-four thousand, fifty-five".