253919417 has 2 divisors, whose sum is σ = 253919418. Its totient is φ = 253919416.

The previous prime is 253919387. The next prime is 253919459. The reversal of 253919417 is 714919352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249513616 + 4405801 = 15796^2 + 2099^2 .

It is a cyclic number.

It is not a de Polignac number, because 253919417 - 2²⁰ = 252870841 is a prime.

It is not a weakly prime, because it can be changed into another prime (253919467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126959708 + 126959709.

It is an arithmetic number, because the mean of its divisors is an integer number (126959709).

Almost surely, 2^253919417 is an apocalyptic number.

It is an amenable number.

253919417 is a deficient number, since it is larger than the sum of its proper divisors (1).

253919417 is an equidigital number, since it uses as much as digits as its factorization.

253919417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 253919417 is about 15934.8491364054. The cubic root of 253919417 is about 633.2355730609.

The spelling of 253919417 in words is "two hundred fifty-three million, nine hundred nineteen thousand, four hundred seventeen".