5285775820 has 72 divisors (see below), whose sum is σ = 12542445216. Its totient is φ = 1866788352.

The previous prime is 5285775809. The next prime is 5285775821. The reversal of 5285775820 is 285775825.

It is not an unprimeable number, because it can be changed into a prime (5285775821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43744 + ... + 111736.

It is an arithmetic number, because the mean of its divisors is an integer number (174200628).

Almost surely, 2^5285775820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5285775820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6271222608).

5285775820 is an abundant number, since it is smaller than the sum of its proper divisors (7256669396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5285775820 is a wasteful number, since it uses less digits than its factorization.

5285775820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68051 (or 68036 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 49.

The square root of 5285775820 is about 72703.3411886964. The cubic root of 5285775820 is about 1741.9522523484.

The spelling of 5285775820 in words is "five billion, two hundred eighty-five million, seven hundred seventy-five thousand, eight hundred twenty".