45445559 has 2 divisors, whose sum is σ = 45445560. Its totient is φ = 45445558.

The previous prime is 45445529. The next prime is 45445577. The reversal of 45445559 is 95554454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45445559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45445529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722779 + 22722780.

It is an arithmetic number, because the mean of its divisors is an integer number (22722780).

Almost surely, 2^45445559 is an apocalyptic number.

45445559 is a deficient number, since it is larger than the sum of its proper divisors (1).

45445559 is an equidigital number, since it uses as much as digits as its factorization.

45445559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360000, while the sum is 41.

The square root of 45445559 is about 6741.3321383833. The cubic root of 45445559 is about 356.8594073789.

The spelling of 45445559 in words is "forty-five million, four hundred forty-five thousand, five hundred fifty-nine".