45561823 has 2 divisors, whose sum is σ = 45561824. Its totient is φ = 45561822.

The previous prime is 45561797. The next prime is 45561833. The reversal of 45561823 is 32816554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45561823 - 2⁹ = 45561311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45561833) 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, 22780911 + 22780912.

It is an arithmetic number, because the mean of its divisors is an integer number (22780912).

Almost surely, 2^45561823 is an apocalyptic number.

45561823 is a deficient number, since it is larger than the sum of its proper divisors (1).

45561823 is an equidigital number, since it uses as much as digits as its factorization.

45561823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 45561823 is about 6749.9498516656. The cubic root of 45561823 is about 357.1634676791.

The spelling of 45561823 in words is "forty-five million, five hundred sixty-one thousand, eight hundred twenty-three".