45565573 has 2 divisors, whose sum is σ = 45565574. Its totient is φ = 45565572.

The previous prime is 45565571. The next prime is 45565579. The reversal of 45565573 is 37556554.

45565573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44315649 + 1249924 = 6657^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 45565573 - 2¹ = 45565571 is a prime.

Together with 45565571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45565571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22782786 + 22782787.

It is an arithmetic number, because the mean of its divisors is an integer number (22782787).

Almost surely, 2^45565573 is an apocalyptic number.

It is an amenable number.

45565573 is a deficient number, since it is larger than the sum of its proper divisors (1).

45565573 is an equidigital number, since it uses as much as digits as its factorization.

45565573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315000, while the sum is 40.

The square root of 45565573 is about 6750.2276257916. The cubic root of 45565573 is about 357.1732662793.

The spelling of 45565573 in words is "forty-five million, five hundred sixty-five thousand, five hundred seventy-three".