253935475145 has 16 divisors (see below), whose sum is σ = 332437165632. Its totient is φ = 184673376960.

The previous prime is 253935475121. The next prime is 253935475151. The reversal of 253935475145 is 541574539352.

It is a de Polignac number, because none of the positive numbers 2^k-253935475145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1722359 + ... + 1863971.

It is an arithmetic number, because the mean of its divisors is an integer number (20777322852).

Almost surely, 2^253935475145 is an apocalyptic number.

It is an amenable number.

253935475145 is a deficient number, since it is larger than the sum of its proper divisors (78501690487).

253935475145 is a wasteful number, since it uses less digits than its factorization.

253935475145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174232.

The product of its digits is 11340000, while the sum is 53.

The spelling of 253935475145 in words is "two hundred fifty-three billion, nine hundred thirty-five million, four hundred seventy-five thousand, one hundred forty-five".