253456019 has 2 divisors, whose sum is σ = 253456020. Its totient is φ = 253456018.

The previous prime is 253456001. The next prime is 253456039. The reversal of 253456019 is 910654352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253456019 - 2²⁴ = 236678803 is a prime.

It is a super-2 number, since 2×253456019² = 128479907134656722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 253456019.

It is not a weakly prime, because it can be changed into another prime (253456039) 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, 126728009 + 126728010.

It is an arithmetic number, because the mean of its divisors is an integer number (126728010).

Almost surely, 2^253456019 is an apocalyptic number.

253456019 is a deficient number, since it is larger than the sum of its proper divisors (1).

253456019 is an equidigital number, since it uses as much as digits as its factorization.

253456019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 253456019 is about 15920.3021014050. The cubic root of 253456019 is about 632.8501242831.

The spelling of 253456019 in words is "two hundred fifty-three million, four hundred fifty-six thousand, nineteen".