253453423 has 2 divisors, whose sum is σ = 253453424. Its totient is φ = 253453422.

The previous prime is 253453397. The next prime is 253453433. The reversal of 253453423 is 324354352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253453423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253453433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126726711 + 126726712.

It is an arithmetic number, because the mean of its divisors is an integer number (126726712).

Almost surely, 2^253453423 is an apocalyptic number.

253453423 is a deficient number, since it is larger than the sum of its proper divisors (1).

253453423 is an equidigital number, since it uses as much as digits as its factorization.

253453423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 31.

The square root of 253453423 is about 15920.2205700801. The cubic root of 253453423 is about 632.8479636393.

The spelling of 253453423 in words is "two hundred fifty-three million, four hundred fifty-three thousand, four hundred twenty-three".