7125552555217 has 2 divisors, whose sum is σ = 7125552555218. Its totient is φ = 7125552555216.

The previous prime is 7125552555179. The next prime is 7125552555293.

It is a happy number.

7125552555217 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6650781945921 + 474770609296 = 2578911^2 + 689036^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 7125552555217 - 2¹⁵ = 7125552522449 is a prime.

It is not a weakly prime, because it can be changed into another prime (7125552555617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3562776277608 + 3562776277609.

It is an arithmetic number, because the mean of its divisors is an integer number (3562776277609).

Almost surely, 2^{7125552555217} is an apocalyptic number.

It is an amenable number.

7125552555217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7125552555217 is an equidigital number, since it uses as much as digits as its factorization.

7125552555217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6125000, while the sum is 52.

The spelling of 7125552555217 in words is "seven trillion, one hundred twenty-five billion, five hundred fifty-two million, five hundred fifty-five thousand, two hundred seventeen".