253331133353 has 6 divisors (see below), whose sum is σ = 256578454314. Its totient is φ = 250124403984.

The previous prime is 253331133221. The next prime is 253331133379. The reversal of 253331133353 is 353331133352.

It can be written as a sum of positive squares in only one way, i.e., 203981399449 + 49349733904 = 451643^2 + 222148^2 .

It is not a de Polignac number, because 253331133353 - 2¹² = 253331129257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253331633353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20289476 + ... + 20301957.

It is an arithmetic number, because the mean of its divisors is an integer number (42763075719).

Almost surely, 2^253331133353 is an apocalyptic number.

It is an amenable number.

253331133353 is a deficient number, since it is larger than the sum of its proper divisors (3247320961).

253331133353 is an frugal number, since it uses more digits than its factorization.

253331133353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40591591 (or 40591512 counting only the distinct ones).

The product of its digits is 109350, while the sum is 35.

Subtracting 253331133353 from its reverse (353331133352), we obtain a palindrome (99999999999).

The spelling of 253331133353 in words is "two hundred fifty-three billion, three hundred thirty-one million, one hundred thirty-three thousand, three hundred fifty-three".