253969619 has 2 divisors, whose sum is σ = 253969620. Its totient is φ = 253969618.

The previous prime is 253969601. The next prime is 253969631. The reversal of 253969619 is 916969352.

253969619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253969619 is a prime.

It is a super-2 number, since 2×253969619² = 129001134750010322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253969649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126984809 + 126984810.

It is an arithmetic number, because the mean of its divisors is an integer number (126984810).

Almost surely, 2^253969619 is an apocalyptic number.

253969619 is a deficient number, since it is larger than the sum of its proper divisors (1).

253969619 is an equidigital number, since it uses as much as digits as its factorization.

253969619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 50.

The square root of 253969619 is about 15936.4242852655. The cubic root of 253969619 is about 633.2773023069.

The spelling of 253969619 in words is "two hundred fifty-three million, nine hundred sixty-nine thousand, six hundred nineteen".