255253030555 has 4 divisors (see below), whose sum is σ = 306303636672. Its totient is φ = 204202424440.

The previous prime is 255253030553. The next prime is 255253030579. The reversal of 255253030555 is 555030352552.

It is a happy number.

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

It is not a de Polignac number, because 255253030555 - 2¹ = 255253030553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255253030553) 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, 25525303051 + ... + 25525303060.

It is an arithmetic number, because the mean of its divisors is an integer number (76575909168).

Almost surely, 2^255253030555 is an apocalyptic number.

255253030555 is a deficient number, since it is larger than the sum of its proper divisors (51050606117).

255253030555 is an equidigital number, since it uses as much as digits as its factorization.

255253030555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51050606116.

The product of its (nonzero) digits is 562500, while the sum is 40.

The spelling of 255253030555 in words is "two hundred fifty-five billion, two hundred fifty-three million, thirty thousand, five hundred fifty-five".