253716571428797 has 2 divisors, whose sum is σ = 253716571428798. Its totient is φ = 253716571428796.

The previous prime is 253716571428601. The next prime is 253716571428911. The reversal of 253716571428797 is 797824175617352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194881013680441 + 58835557748356 = 13959979^2 + 7670434^2 .

It is a cyclic number.

It is not a de Polignac number, because 253716571428797 - 2¹⁶ = 253716571363261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253716571428497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126858285714398 + 126858285714399.

It is an arithmetic number, because the mean of its divisors is an integer number (126858285714399).

Almost surely, 2^{253716571428797} is an apocalyptic number.

It is an amenable number.

253716571428797 is a deficient number, since it is larger than the sum of its proper divisors (1).

253716571428797 is an equidigital number, since it uses as much as digits as its factorization.

253716571428797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244678400, while the sum is 74.

The spelling of 253716571428797 in words is "two hundred fifty-three trillion, seven hundred sixteen billion, five hundred seventy-one million, four hundred twenty-eight thousand, seven hundred ninety-seven".