5218405287 has 8 divisors (see below), whose sum is σ = 7025426304. Its totient is φ = 3445160568.

The previous prime is 5218405249. The next prime is 5218405307. The reversal of 5218405287 is 7825048125.

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

It is not a de Polignac number, because 5218405287 - 2³¹ = 3070921639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218404287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8443713 + ... + 8444330.

It is an arithmetic number, because the mean of its divisors is an integer number (878178288).

Almost surely, 2^5218405287 is an apocalyptic number.

5218405287 is a deficient number, since it is larger than the sum of its proper divisors (1807021017).

5218405287 is a wasteful number, since it uses less digits than its factorization.

5218405287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16888149.

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 5218405287 is about 72238.5304875452. The cubic root of 5218405287 is about 1734.5198268140.

The spelling of 5218405287 in words is "five billion, two hundred eighteen million, four hundred five thousand, two hundred eighty-seven".