253453040423 has 8 divisors (see below), whose sum is σ = 277099251600. Its totient is φ = 229907666880.

The previous prime is 253453040383. The next prime is 253453040437. The reversal of 253453040423 is 324040354352.

It is a happy number.

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 253453040423 - 2²⁰ = 253451991847 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 (253453040483) 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, 25204148 + ... + 25214201.

It is an arithmetic number, because the mean of its divisors is an integer number (34637406450).

Almost surely, 2^253453040423 is an apocalyptic number.

253453040423 is a deficient number, since it is larger than the sum of its proper divisors (23646211177).

253453040423 is a wasteful number, since it uses less digits than its factorization.

253453040423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50418817.

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 253453040423 its reverse (324040354352), we get a palindrome (577493394775).

The spelling of 253453040423 in words is "two hundred fifty-three billion, four hundred fifty-three million, forty thousand, four hundred twenty-three".