255033221153155 has 4 divisors (see below), whose sum is σ = 306039865383792. Its totient is φ = 204026576922520.

The previous prime is 255033221153153. The next prime is 255033221153173. The reversal of 255033221153155 is 551351122330552.

It is a happy number.

255033221153155 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 255033221153155 - 2¹ = 255033221153153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255033221153153) 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, 25503322115311 + ... + 25503322115320.

It is an arithmetic number, because the mean of its divisors is an integer number (76509966345948).

Almost surely, 2^{255033221153155} is an apocalyptic number.

255033221153155 is a deficient number, since it is larger than the sum of its proper divisors (51006644230637).

255033221153155 is an equidigital number, since it uses as much as digits as its factorization.

255033221153155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51006644230636.

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 255033221153155 in words is "two hundred fifty-five trillion, thirty-three billion, two hundred twenty-one million, one hundred fifty-three thousand, one hundred fifty-five".