45545403217 has 2 divisors, whose sum is σ = 45545403218. Its totient is φ = 45545403216.

The previous prime is 45545403193. The next prime is 45545403221. The reversal of 45545403217 is 71230454554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45539133201 + 6270016 = 213399^2 + 2504^2 .

It is a cyclic number.

It is not a de Polignac number, because 45545403217 - 2²⁷ = 45411185489 is a prime.

It is a super-2 number, since 2×45545403217² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45545403217.

It is not a weakly prime, because it can be changed into another prime (45545403247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772701608 + 22772701609.

It is an arithmetic number, because the mean of its divisors is an integer number (22772701609).

Almost surely, 2^45545403217 is an apocalyptic number.

It is an amenable number.

45545403217 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545403217 is an equidigital number, since it uses as much as digits as its factorization.

45545403217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 45545403217 in words is "forty-five billion, five hundred forty-five million, four hundred three thousand, two hundred seventeen".