2185530893 has 16 divisors (see below), whose sum is σ = 2692005120. Its totient is φ = 1727847936.

The previous prime is 2185530889. The next prime is 2185530929. The reversal of 2185530893 is 3980355812.

It is a cyclic number.

It is not a de Polignac number, because 2185530893 - 2² = 2185530889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185530493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115613 + ... + 133181.

It is an arithmetic number, because the mean of its divisors is an integer number (168250320).

Almost surely, 2^2185530893 is an apocalyptic number.

It is an amenable number.

2185530893 is a deficient number, since it is larger than the sum of its proper divisors (506474227).

2185530893 is a wasteful number, since it uses less digits than its factorization.

2185530893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18956.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 2185530893 is about 46749.6619559971. The cubic root of 2185530893 is about 1297.7339008552.

The spelling of 2185530893 in words is "two billion, one hundred eighty-five million, five hundred thirty thousand, eight hundred ninety-three".