253255445917 has 2 divisors, whose sum is σ = 253255445918. Its totient is φ = 253255445916.

The previous prime is 253255445857. The next prime is 253255445953. The reversal of 253255445917 is 719544552352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201426825636 + 51828620281 = 448806^2 + 227659^2 .

It is a cyclic number.

It is not a de Polignac number, because 253255445917 - 2¹⁹ = 253254921629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253255445957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126627722958 + 126627722959.

It is an arithmetic number, because the mean of its divisors is an integer number (126627722959).

Almost surely, 2^253255445917 is an apocalyptic number.

It is an amenable number.

253255445917 is a deficient number, since it is larger than the sum of its proper divisors (1).

253255445917 is an equidigital number, since it uses as much as digits as its factorization.

253255445917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560000, while the sum is 52.

The spelling of 253255445917 in words is "two hundred fifty-three billion, two hundred fifty-five million, four hundred forty-five thousand, nine hundred seventeen".