253453453 has 4 divisors (see below), whose sum is σ = 276494688. Its totient is φ = 230412220.

The previous prime is 253453433. The next prime is 253453511. The reversal of 253453453 is 354354352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253453453 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 (253453423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11520601 + ... + 11520622.

It is an arithmetic number, because the mean of its divisors is an integer number (69123672).

Almost surely, 2^253453453 is an apocalyptic number.

It is an amenable number.

253453453 is a deficient number, since it is larger than the sum of its proper divisors (23041235).

253453453 is a wasteful number, since it uses less digits than its factorization.

253453453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23041234.

The product of its digits is 108000, while the sum is 34.

The square root of 253453453 is about 15920.2215122780. The cubic root of 253453453 is about 632.8479886083.

The spelling of 253453453 in words is "two hundred fifty-three million, four hundred fifty-three thousand, four hundred fifty-three".