253634263223 has 4 divisors (see below), whose sum is σ = 276691923528. Its totient is φ = 230576602920.

The previous prime is 253634263217. The next prime is 253634263301. The reversal of 253634263223 is 322362436352.

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

It is a cyclic number.

It is not a de Polignac number, because 253634263223 - 2¹⁸ = 253634001079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253634263123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11528830136 + ... + 11528830157.

It is an arithmetic number, because the mean of its divisors is an integer number (69172980882).

Almost surely, 2^253634263223 is an apocalyptic number.

253634263223 is a deficient number, since it is larger than the sum of its proper divisors (23057660305).

253634263223 is a wasteful number, since it uses less digits than its factorization.

253634263223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23057660304.

The product of its digits is 933120, while the sum is 41.

Adding to 253634263223 its reverse (322362436352), we get a palindrome (575996699575).

The spelling of 253634263223 in words is "two hundred fifty-three billion, six hundred thirty-four million, two hundred sixty-three thousand, two hundred twenty-three".