445755250441517 has 2 divisors, whose sum is σ = 445755250441518. Its totient is φ = 445755250441516.

The previous prime is 445755250441439. The next prime is 445755250441541. The reversal of 445755250441517 is 715144052557544.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426502584459721 + 19252665981796 = 20651939^2 + 4387786^2 .

It is a cyclic number.

It is not a de Polignac number, because 445755250441517 - 2⁸ = 445755250441261 is a prime.

It is a super-2 number, since 2×445755250441517² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445755250491517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222877625220758 + 222877625220759.

It is an arithmetic number, because the mean of its divisors is an integer number (222877625220759).

Almost surely, 2^{445755250441517} is an apocalyptic number.

It is an amenable number.

445755250441517 is a deficient number, since it is larger than the sum of its proper divisors (1).

445755250441517 is an equidigital number, since it uses as much as digits as its factorization.

445755250441517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400000, while the sum is 59.

The spelling of 445755250441517 in words is "four hundred forty-five trillion, seven hundred fifty-five billion, two hundred fifty million, four hundred forty-one thousand, five hundred seventeen".