2185253803 has 4 divisors (see below), whose sum is σ = 2186069760. Its totient is φ = 2184437848.

The previous prime is 2185253747. The next prime is 2185253869. The reversal of 2185253803 is 3083525812.

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

It is a cyclic number.

It is not a de Polignac number, because 2185253803 - 2²⁵ = 2151699371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2185253893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403948 + ... + 409321.

It is an arithmetic number, because the mean of its divisors is an integer number (546517440).

Almost surely, 2^2185253803 is an apocalyptic number.

2185253803 is a deficient number, since it is larger than the sum of its proper divisors (815957).

2185253803 is an equidigital number, since it uses as much as digits as its factorization.

2185253803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815956.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 2185253803 is about 46746.6983112177. The cubic root of 2185253803 is about 1297.6790546414.

The spelling of 2185253803 in words is "two billion, one hundred eighty-five million, two hundred fifty-three thousand, eight hundred three".