255000505555 has 4 divisors (see below), whose sum is σ = 306000606672. Its totient is φ = 204000404440.

The previous prime is 255000505517. The next prime is 255000505559. The reversal of 255000505555 is 555505000552.

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

It is not a de Polignac number, because 255000505555 - 2⁹ = 255000505043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255000505559) 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, 25500050551 + ... + 25500050560.

It is an arithmetic number, because the mean of its divisors is an integer number (76500151668).

Almost surely, 2^255000505555 is an apocalyptic number.

255000505555 is a deficient number, since it is larger than the sum of its proper divisors (51000101117).

255000505555 is an equidigital number, since it uses as much as digits as its factorization.

255000505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51000101116.

The product of its (nonzero) digits is 156250, while the sum is 37.

The spelling of 255000505555 in words is "two hundred fifty-five billion, five hundred five thousand, five hundred fifty-five".