2018811825 has 36 divisors (see below), whose sum is σ = 3630423888. Its totient is φ = 1072380000.

The previous prime is 2018811793. The next prime is 2018811827. The reversal of 2018811825 is 5281188102.

It is not a de Polignac number, because 2018811825 - 2⁵ = 2018811793 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2018811825.

It is not an unprimeable number, because it can be changed into a prime (2018811827) 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 35 ways as a sum of consecutive naturals, for example, 38602 + ... + 74348.

It is an arithmetic number, because the mean of its divisors is an integer number (100845108).

Almost surely, 2^2018811825 is an apocalyptic number.

2018811825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2018811825 is a deficient number, since it is larger than the sum of its proper divisors (1611612063).

2018811825 is a wasteful number, since it uses less digits than its factorization.

2018811825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36014 (or 36006 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The square root of 2018811825 is about 44931.1898907652. The cubic root of 2018811825 is about 1263.8589647376.

Adding to 2018811825 its reverse (5281188102), we get a palindrome (7299999927).

The spelling of 2018811825 in words is "two billion, eighteen million, eight hundred eleven thousand, eight hundred twenty-five".