253264416633 has 10 divisors (see below), whose sum is σ = 378333264474. Its totient is φ = 168842944368.

The previous prime is 253264416617. The next prime is 253264416703. The reversal of 253264416633 is 336614462352.

253264416633 is a `hidden beast` number, since 2 + 5 + 3 + 2 + 6 + 4 + 4 + 1 + 6 + 633 = 666.

It can be written as a sum of positive squares in only one way, i.e., 237176792064 + 16087624569 = 487008^2 + 126837^2 .

It is not a de Polignac number, because 253264416633 - 2⁴ = 253264416617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253264416733) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1563360516 + ... + 1563360677.

Almost surely, 2^253264416633 is an apocalyptic number.

It is an amenable number.

253264416633 is a deficient number, since it is larger than the sum of its proper divisors (125068847841).

253264416633 is an equidigital number, since it uses as much as digits as its factorization.

253264416633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126721205 (or 3126721196 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

Adding to 253264416633 its reverse (336614462352), we get a palindrome (589878878985).

The spelling of 253264416633 in words is "two hundred fifty-three billion, two hundred sixty-four million, four hundred sixteen thousand, six hundred thirty-three".