189896925 has 24 divisors (see below), whose sum is σ = 330489760. Its totient is φ = 95947200.

The previous prime is 189896921. The next prime is 189896939. The reversal of 189896925 is 529698981.

It is not a de Polignac number, because 189896925 - 2² = 189896921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189896921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65206 + ... + 68055.

Almost surely, 2^189896925 is an apocalyptic number.

189896925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189896925 is a deficient number, since it is larger than the sum of its proper divisors (140592835).

189896925 is a wasteful number, since it uses less digits than its factorization.

189896925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133293 (or 133288 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 57.

The square root of 189896925 is about 13780.3093216372. The cubic root of 189896925 is about 574.7857298673.

The spelling of 189896925 in words is "one hundred eighty-nine million, eight hundred ninety-six thousand, nine hundred twenty-five".