255905335011 has 4 divisors (see below), whose sum is σ = 341207113352. Its totient is φ = 170603556672.

The previous prime is 255905335009. The next prime is 255905335019. The reversal of 255905335011 is 110533509552.

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

It is not a de Polignac number, because 255905335011 - 2¹ = 255905335009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255905335019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42650889166 + ... + 42650889171.

It is an arithmetic number, because the mean of its divisors is an integer number (85301778338).

Almost surely, 2^255905335011 is an apocalyptic number.

255905335011 is a deficient number, since it is larger than the sum of its proper divisors (85301778341).

255905335011 is an equidigital number, since it uses as much as digits as its factorization.

255905335011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85301778340.

The product of its (nonzero) digits is 101250, while the sum is 39.

The spelling of 255905335011 in words is "two hundred fifty-five billion, nine hundred five million, three hundred thirty-five thousand, eleven".