253420604613 has 64 divisors (see below), whose sum is σ = 434278713600. Its totient is φ = 144347719680.

The previous prime is 253420604587. The next prime is 253420604617. The reversal of 253420604613 is 316406024352.

253420604613 is a `hidden beast` number, since 2 + 5 + 3 + 42 + 0 + 604 + 6 + 1 + 3 = 666.

It is not a de Polignac number, because 253420604613 - 2⁵ = 253420604581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253420604617) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3544345 + ... + 3615137.

It is an arithmetic number, because the mean of its divisors is an integer number (6785604900).

Almost surely, 2^253420604613 is an apocalyptic number.

It is an amenable number.

253420604613 is a deficient number, since it is larger than the sum of its proper divisors (180858108987).

253420604613 is a wasteful number, since it uses less digits than its factorization.

253420604613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71539 (or 71533 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 253420604613 its reverse (316406024352), we get a palindrome (569826628965).

The spelling of 253420604613 in words is "two hundred fifty-three billion, four hundred twenty million, six hundred four thousand, six hundred thirteen".