445555545 has 8 divisors (see below), whose sum is σ = 712888896. Its totient is φ = 237629616.

The previous prime is 445555531. The next prime is 445555571. The reversal of 445555545 is 545555544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445555545 - 2²³ = 437166937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445555497 and 445555506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14851837 + ... + 14851866.

It is an arithmetic number, because the mean of its divisors is an integer number (89111112).

Almost surely, 2^445555545 is an apocalyptic number.

It is an amenable number.

445555545 is a deficient number, since it is larger than the sum of its proper divisors (267333351).

445555545 is a wasteful number, since it uses less digits than its factorization.

445555545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29703711.

The product of its digits is 1000000, while the sum is 42.

The square root of 445555545 is about 21108.1866819488. The cubic root of 445555545 is about 763.7782454689.

Subtracting 445555545 from its reverse (545555544), we obtain a palindrome (99999999).

The spelling of 445555545 in words is "four hundred forty-five million, five hundred fifty-five thousand, five hundred forty-five".