45515251273 has 2 divisors, whose sum is σ = 45515251274. Its totient is φ = 45515251272.

The previous prime is 45515251261. The next prime is 45515251319. The reversal of 45515251273 is 37215251554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44357414544 + 1157836729 = 210612^2 + 34027^2 .

It is a cyclic number.

It is not a de Polignac number, because 45515251273 - 2⁹ = 45515250761 is a prime.

It is not a weakly prime, because it can be changed into another prime (45515251253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22757625636 + 22757625637.

It is an arithmetic number, because the mean of its divisors is an integer number (22757625637).

Almost surely, 2^45515251273 is an apocalyptic number.

It is an amenable number.

45515251273 is a deficient number, since it is larger than the sum of its proper divisors (1).

45515251273 is an equidigital number, since it uses as much as digits as its factorization.

45515251273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 210000, while the sum is 40.

The spelling of 45515251273 in words is "forty-five billion, five hundred fifteen million, two hundred fifty-one thousand, two hundred seventy-three".