1850166925 has 6 divisors (see below), whose sum is σ = 2294207018. Its totient is φ = 1480133520.

The previous prime is 1850166917. The next prime is 1850166949. The reversal of 1850166925 is 5296610581.

It can be written as a sum of positive squares in 3 ways, for example, as 126090441 + 1724076484 = 11229^2 + 41522^2 .

It is not a de Polignac number, because 1850166925 - 2³ = 1850166917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 37003314 + ... + 37003363.

Almost surely, 2^1850166925 is an apocalyptic number.

It is an amenable number.

1850166925 is a deficient number, since it is larger than the sum of its proper divisors (444040093).

1850166925 is an equidigital number, since it uses as much as digits as its factorization.

1850166925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74006687 (or 74006682 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 1850166925 is about 43013.5667551530. The cubic root of 1850166925 is about 1227.6379471180.

The spelling of 1850166925 in words is "one billion, eight hundred fifty million, one hundred sixty-six thousand, nine hundred twenty-five".