253453422155 has 4 divisors (see below), whose sum is σ = 304144106592. Its totient is φ = 202762737720.

The previous prime is 253453422149. The next prime is 253453422163. The reversal of 253453422155 is 551224354352.

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

It is not a de Polignac number, because 253453422155 - 2⁶ = 253453422091 is a prime.

It is a Duffinian 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, 25345342211 + ... + 25345342220.

It is an arithmetic number, because the mean of its divisors is an integer number (76036026648).

Almost surely, 2^253453422155 is an apocalyptic number.

253453422155 is a deficient number, since it is larger than the sum of its proper divisors (50690684437).

253453422155 is an equidigital number, since it uses as much as digits as its factorization.

253453422155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50690684436.

The product of its digits is 720000, while the sum is 41.

The spelling of 253453422155 in words is "two hundred fifty-three billion, four hundred fifty-three million, four hundred twenty-two thousand, one hundred fifty-five".