253105598813 has 2 divisors, whose sum is σ = 253105598814. Its totient is φ = 253105598812.

The previous prime is 253105598791. The next prime is 253105598927. The reversal of 253105598813 is 318895501352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137109500089 + 115996098724 = 370283^2 + 340582^2 .

It is a cyclic number.

It is not a de Polignac number, because 253105598813 - 2¹² = 253105594717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253105598513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126552799406 + 126552799407.

It is an arithmetic number, because the mean of its divisors is an integer number (126552799407).

Almost surely, 2^253105598813 is an apocalyptic number.

It is an amenable number.

253105598813 is a deficient number, since it is larger than the sum of its proper divisors (1).

253105598813 is an equidigital number, since it uses as much as digits as its factorization.

253105598813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 50.

The spelling of 253105598813 in words is "two hundred fifty-three billion, one hundred five million, five hundred ninety-eight thousand, eight hundred thirteen".