253421453423 has 8 divisors (see below), whose sum is σ = 268420890960. Its totient is φ = 238432270720.

The previous prime is 253421453393. The next prime is 253421453431. The reversal of 253421453423 is 324354124352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253421453423 - 2⁶ = 253421453359 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 (253421450423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2512793 + ... + 2611698.

It is an arithmetic number, because the mean of its divisors is an integer number (33552611370).

Almost surely, 2^253421453423 is an apocalyptic number.

253421453423 is a deficient number, since it is larger than the sum of its proper divisors (14999437537).

253421453423 is a wasteful number, since it uses less digits than its factorization.

253421453423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127417.

The product of its digits is 345600, while the sum is 38.

Adding to 253421453423 its reverse (324354124352), we get a palindrome (577775577775).

The spelling of 253421453423 in words is "two hundred fifty-three billion, four hundred twenty-one million, four hundred fifty-three thousand, four hundred twenty-three".