5218042545 has 32 divisors (see below), whose sum is σ = 9679852800. Its totient is φ = 2661956352.

The previous prime is 5218042519. The next prime is 5218042597. The reversal of 5218042545 is 5452408125.

5218042545 is a `hidden beast` number, since 52 + 180 + 425 + 4 + 5 = 666.

It is not a de Polignac number, because 5218042545 - 2⁸ = 5218042289 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 837160 + ... + 843369.

It is an arithmetic number, because the mean of its divisors is an integer number (302495400).

Almost surely, 2^5218042545 is an apocalyptic number.

It is an amenable number.

5218042545 is a deficient number, since it is larger than the sum of its proper divisors (4461810255).

5218042545 is a wasteful number, since it uses less digits than its factorization.

5218042545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680566 (or 1680560 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 5218042545 is about 72236.0197200815. The cubic root of 5218042545 is about 1734.4796358785.

The spelling of 5218042545 in words is "five billion, two hundred eighteen million, forty-two thousand, five hundred forty-five".