255503005055 has 4 divisors (see below), whose sum is σ = 306603606072. Its totient is φ = 204402404040.

The previous prime is 255503004973. The next prime is 255503005063. The reversal of 255503005055 is 550500305552.

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

It is not a de Polignac number, because 255503005055 - 2³⁴ = 238323135871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25550300501 + ... + 25550300510.

It is an arithmetic number, because the mean of its divisors is an integer number (76650901518).

Almost surely, 2^255503005055 is an apocalyptic number.

255503005055 is a deficient number, since it is larger than the sum of its proper divisors (51100601017).

255503005055 is an equidigital number, since it uses as much as digits as its factorization.

255503005055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51100601016.

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 255503005055 in words is "two hundred fifty-five billion, five hundred three million, five thousand, fifty-five".