255011226563 has 4 divisors (see below), whose sum is σ = 260941720248. Its totient is φ = 249080732880.

The previous prime is 255011226539. The next prime is 255011226577. The reversal of 255011226563 is 365622110552.

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

It is a cyclic number.

It is not a de Polignac number, because 255011226563 - 2⁶ = 255011226499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255011226583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965246778 + ... + 2965246863.

It is an arithmetic number, because the mean of its divisors is an integer number (65235430062).

Almost surely, 2^255011226563 is an apocalyptic number.

255011226563 is a deficient number, since it is larger than the sum of its proper divisors (5930493685).

255011226563 is an equidigital number, since it uses as much as digits as its factorization.

255011226563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930493684.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 255011226563 in words is "two hundred fifty-five billion, eleven million, two hundred twenty-six thousand, five hundred sixty-three".