255010656221 has 32 divisors (see below), whose sum is σ = 267905138688. Its totient is φ = 242543125440.

The previous prime is 255010656163. The next prime is 255010656247. The reversal of 255010656221 is 122656010552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255010656221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255010656281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95759336 + ... + 95761998.

It is an arithmetic number, because the mean of its divisors is an integer number (8372035584).

Almost surely, 2^255010656221 is an apocalyptic number.

It is an amenable number.

255010656221 is a deficient number, since it is larger than the sum of its proper divisors (12894482467).

255010656221 is a wasteful number, since it uses less digits than its factorization.

255010656221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 255010656221 its reverse (122656010552), we get a palindrome (377666666773).

The spelling of 255010656221 in words is "two hundred fifty-five billion, ten million, six hundred fifty-six thousand, two hundred twenty-one".