2185050172 has 12 divisors (see below), whose sum is σ = 3831693040. Its totient is φ = 1090280736.

The previous prime is 2185050167. The next prime is 2185050173. The reversal of 2185050172 is 2710505812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185050173) 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, 558897 + ... + 562792.

Almost surely, 2^2185050172 is an apocalyptic number.

It is an amenable number.

2185050172 is a deficient number, since it is larger than the sum of its proper divisors (1646642868).

2185050172 is a wasteful number, since it uses less digits than its factorization.

2185050172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122180 (or 1122178 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 2185050172 is about 46744.5202349965. The cubic root of 2185050172 is about 1297.6387456863.

Adding to 2185050172 its reverse (2710505812), we get a palindrome (4895555984).

The spelling of 2185050172 in words is "two billion, one hundred eighty-five million, fifty thousand, one hundred seventy-two".