5505550017257 has 2 divisors, whose sum is σ = 5505550017258. Its totient is φ = 5505550017256.

The previous prime is 5505550017197. The next prime is 5505550017293. The reversal of 5505550017257 is 7527100555055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3033661711081 + 2471888306176 = 1741741^2 + 1572224^2 .

It is a cyclic number.

It is not a de Polignac number, because 5505550017257 - 2²⁰ = 5505548968681 is a prime.

It is a super-2 number, since 2×5505550017257² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5505550017157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752775008628 + 2752775008629.

It is an arithmetic number, because the mean of its divisors is an integer number (2752775008629).

Almost surely, 2^{5505550017257} is an apocalyptic number.

It is an amenable number.

5505550017257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5505550017257 is an equidigital number, since it uses as much as digits as its factorization.

5505550017257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1531250, while the sum is 47.

The spelling of 5505550017257 in words is "five trillion, five hundred five billion, five hundred fifty million, seventeen thousand, two hundred fifty-seven".