194666725 has 24 divisors (see below), whose sum is σ = 265304448. Its totient is φ = 140515200.

The previous prime is 194666713. The next prime is 194666749. The reversal of 194666725 is 527666491.

194666725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194666725 - 2⁷ = 194666597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35092 + ... + 40258.

It is an arithmetic number, because the mean of its divisors is an integer number (11054352).

Almost surely, 2^194666725 is an apocalyptic number.

It is an amenable number.

194666725 is a deficient number, since it is larger than the sum of its proper divisors (70637723).

194666725 is a wasteful number, since it uses less digits than its factorization.

194666725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325 (or 5320 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 194666725 is about 13952.3017814266. The cubic root of 194666725 is about 579.5584481190.

The spelling of 194666725 in words is "one hundred ninety-four million, six hundred sixty-six thousand, seven hundred twenty-five".