5285215855 has 4 divisors (see below), whose sum is σ = 6342259032. Its totient is φ = 4228172680.

The previous prime is 5285215843. The next prime is 5285215907. The reversal of 5285215855 is 5585125825.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5285215855 - 2⁹ = 5285215343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528521581 + ... + 528521590.

It is an arithmetic number, because the mean of its divisors is an integer number (1585564758).

Almost surely, 2^5285215855 is an apocalyptic number.

5285215855 is a deficient number, since it is larger than the sum of its proper divisors (1057043177).

5285215855 is a wasteful number, since it uses less digits than its factorization.

5285215855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057043176.

The product of its digits is 800000, while the sum is 46.

The square root of 5285215855 is about 72699.4900601098. The cubic root of 5285215855 is about 1741.8907371439.

The spelling of 5285215855 in words is "five billion, two hundred eighty-five million, two hundred fifteen thousand, eight hundred fifty-five".