253608717873013 has 2 divisors, whose sum is σ = 253608717873014. Its totient is φ = 253608717873012.

The previous prime is 253608717872953. The next prime is 253608717873023. The reversal of 253608717873013 is 310378717806352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140213970075204 + 113394747797809 = 11841198^2 + 10648697^2 .

It is a cyclic number.

It is not a de Polignac number, because 253608717873013 - 2²¹ = 253608715775861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253608717873023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126804358936506 + 126804358936507.

It is an arithmetic number, because the mean of its divisors is an integer number (126804358936507).

Almost surely, 2^{253608717873013} is an apocalyptic number.

It is an amenable number.

253608717873013 is a deficient number, since it is larger than the sum of its proper divisors (1).

253608717873013 is an equidigital number, since it uses as much as digits as its factorization.

253608717873013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 253608717873013 in words is "two hundred fifty-three trillion, six hundred eight billion, seven hundred seventeen million, eight hundred seventy-three thousand, thirteen".