1894188925 has 12 divisors (see below), whose sum is σ = 2378528320. Its totient is φ = 1496167920.

The previous prime is 1894188913. The next prime is 1894188941. The reversal of 1894188925 is 5298814981.

It is a de Polignac number, because none of the positive numbers 2^k-1894188925 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477567 + ... + 481516.

Almost surely, 2^1894188925 is an apocalyptic number.

It is an amenable number.

1894188925 is a deficient number, since it is larger than the sum of its proper divisors (484339395).

1894188925 is an equidigital number, since it uses as much as digits as its factorization.

1894188925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959172 (or 959167 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 55.

The square root of 1894188925 is about 43522.2807881205. The cubic root of 1894188925 is about 1237.2983421362.

The spelling of 1894188925 in words is "one billion, eight hundred ninety-four million, one hundred eighty-eight thousand, nine hundred twenty-five".