254705354065 has 4 divisors (see below), whose sum is σ = 305646424884. Its totient is φ = 203764283248.

The previous prime is 254705354039. The next prime is 254705354171. The reversal of 254705354065 is 560453507452.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67063907089 + 187641446976 = 258967^2 + 433176^2 .

It is a cyclic number.

It is not a de Polignac number, because 254705354065 - 2⁷ = 254705353937 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, 25470535402 + ... + 25470535411.

It is an arithmetic number, because the mean of its divisors is an integer number (76411606221).

Almost surely, 2^254705354065 is an apocalyptic number.

It is an amenable number.

254705354065 is a deficient number, since it is larger than the sum of its proper divisors (50941070819).

254705354065 is an equidigital number, since it uses as much as digits as its factorization.

254705354065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50941070818.

The product of its (nonzero) digits is 2520000, while the sum is 46.

The spelling of 254705354065 in words is "two hundred fifty-four billion, seven hundred five million, three hundred fifty-four thousand, sixty-five".