45521555473 has 2 divisors, whose sum is σ = 45521555474. Its totient is φ = 45521555472.

The previous prime is 45521555437. The next prime is 45521555489. The reversal of 45521555473 is 37455512554.

Together with previous prime (45521555437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26020270864 + 19501284609 = 161308^2 + 139647^2 .

It is a cyclic number.

It is not a de Polignac number, because 45521555473 - 2²⁹ = 44984684561 is a prime.

It is not a weakly prime, because it can be changed into another prime (45521555273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22760777736 + 22760777737.

It is an arithmetic number, because the mean of its divisors is an integer number (22760777737).

Almost surely, 2^45521555473 is an apocalyptic number.

It is an amenable number.

45521555473 is a deficient number, since it is larger than the sum of its proper divisors (1).

45521555473 is an equidigital number, since it uses as much as digits as its factorization.

45521555473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100000, while the sum is 46.

The spelling of 45521555473 in words is "forty-five billion, five hundred twenty-one million, five hundred fifty-five thousand, four hundred seventy-three".