199125625 has 10 divisors (see below), whose sum is σ = 248828162. Its totient is φ = 159300000.

The previous prime is 199125593. The next prime is 199125631. The reversal of 199125625 is 526521991.

It can be written as a sum of positive squares in 5 ways, for example, as 95004009 + 104121616 = 9747^2 + 10204^2 .

It is not a de Polignac number, because 199125625 - 2⁵ = 199125593 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 9 ways as a sum of consecutive naturals, for example, 158676 + ... + 159925.

Almost surely, 2^199125625 is an apocalyptic number.

It is an amenable number.

199125625 is a deficient number, since it is larger than the sum of its proper divisors (49702537).

199125625 is an frugal number, since it uses more digits than its factorization.

199125625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318621 (or 318606 counting only the distinct ones).

The product of its digits is 48600, while the sum is 40.

The square root of 199125625 is about 14111.1879372362. The cubic root of 199125625 is about 583.9500733340.

The spelling of 199125625 in words is "one hundred ninety-nine million, one hundred twenty-five thousand, six hundred twenty-five".