545445545 has 8 divisors (see below), whose sum is σ = 654708096. Its totient is φ = 436240816.

The previous prime is 545445533. The next prime is 545445553. The reversal of 545445545 is 545544545.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545445545 is a prime.

It is a Duffinian number.

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, 10094 + ... + 34536.

It is an arithmetic number, because the mean of its divisors is an integer number (81838512).

Almost surely, 2^545445545 is an apocalyptic number.

It is an amenable number.

545445545 is a deficient number, since it is larger than the sum of its proper divisors (109262551).

545445545 is a wasteful number, since it uses less digits than its factorization.

545445545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28911.

The product of its digits is 800000, while the sum is 41.

The square root of 545445545 is about 23354.7756358309. The cubic root of 545445545 is about 817.0534465729.

The spelling of 545445545 in words is "five hundred forty-five million, four hundred forty-five thousand, five hundred forty-five".