2185512002 has 4 divisors (see below), whose sum is σ = 3278268006. Its totient is φ = 1092756000.

The previous prime is 2185512001. The next prime is 2185512013. The reversal of 2185512002 is 2002155812.

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

It can be written as a sum of positive squares in only one way, i.e., 2182851841 + 2660161 = 46721^2 + 1631^2 .

It is not an unprimeable number, because it can be changed into a prime (2185512001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546377999 + ... + 546378002.

Almost surely, 2^2185512002 is an apocalyptic number.

2185512002 is a deficient number, since it is larger than the sum of its proper divisors (1092756004).

2185512002 is a wasteful number, since it uses less digits than its factorization.

2185512002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092756003.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 2185512002 is about 46749.4599113188. The cubic root of 2185512002 is about 1297.7301617848.

Adding to 2185512002 its reverse (2002155812), we get a palindrome (4187667814).

The spelling of 2185512002 in words is "two billion, one hundred eighty-five million, five hundred twelve thousand, two".