45909559 has 2 divisors, whose sum is σ = 45909560. Its totient is φ = 45909558.

The previous prime is 45909551. The next prime is 45909569. The reversal of 45909559 is 95590954.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45909559 - 2³ = 45909551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45909551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22954779 + 22954780.

It is an arithmetic number, because the mean of its divisors is an integer number (22954780).

Almost surely, 2^45909559 is an apocalyptic number.

45909559 is a deficient number, since it is larger than the sum of its proper divisors (1).

45909559 is an equidigital number, since it uses as much as digits as its factorization.

45909559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 364500, while the sum is 46.

The square root of 45909559 is about 6775.6593037136. The cubic root of 45909559 is about 358.0698109855.

It can be divided in two parts, 4590955 and 9, that multiplied together give a triangular number (41318595 = T₉₀₉₀).

The spelling of 45909559 in words is "forty-five million, nine hundred nine thousand, five hundred fifty-nine".