44855509 has 2 divisors, whose sum is σ = 44855510. Its totient is φ = 44855508.

The previous prime is 44855501. The next prime is 44855513. The reversal of 44855509 is 90555844.

44855509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43362225 + 1493284 = 6585^2 + 1222^2 .

It is a cyclic number.

It is not a de Polignac number, because 44855509 - 2³ = 44855501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44855501) 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, 22427754 + 22427755.

It is an arithmetic number, because the mean of its divisors is an integer number (22427755).

Almost surely, 2^44855509 is an apocalyptic number.

It is an amenable number.

44855509 is a deficient number, since it is larger than the sum of its proper divisors (1).

44855509 is an equidigital number, since it uses as much as digits as its factorization.

44855509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 44855509 is about 6697.4255501648. The cubic root of 44855509 is about 355.3082266529.

The spelling of 44855509 in words is "forty-four million, eight hundred fifty-five thousand, five hundred nine".