255211211523 has 4 divisors (see below), whose sum is σ = 340281615368. Its totient is φ = 170140807680.

The previous prime is 255211211509. The next prime is 255211211609. The reversal of 255211211523 is 325112112552.

255211211523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 255211211523 - 2⁵ = 255211211491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255211261523) by changing a digit.

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, 42535201918 + ... + 42535201923.

It is an arithmetic number, because the mean of its divisors is an integer number (85070403842).

Almost surely, 2^255211211523 is an apocalyptic number.

255211211523 is a deficient number, since it is larger than the sum of its proper divisors (85070403845).

255211211523 is an equidigital number, since it uses as much as digits as its factorization.

255211211523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85070403844.

The product of its digits is 6000, while the sum is 30.

The spelling of 255211211523 in words is "two hundred fifty-five billion, two hundred eleven million, two hundred eleven thousand, five hundred twenty-three".