195525538 has 16 divisors (see below), whose sum is σ = 324387000. Its totient is φ = 87803136.

The previous prime is 195525527. The next prime is 195525647. The reversal of 195525538 is 835525591.

It can be written as a sum of positive squares in 4 ways, for example, as 112296409 + 83229129 = 10597^2 + 9123^2 .

It is a junction number, because it is equal to n+sod(n) for n = 195525494 and 195525503.

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 7 ways as a sum of consecutive naturals, for example, 100663 + ... + 102586.

Almost surely, 2^195525538 is an apocalyptic number.

195525538 is a deficient number, since it is larger than the sum of its proper divisors (128861462).

195525538 is a wasteful number, since it uses less digits than its factorization.

195525538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203301.

The product of its digits is 270000, while the sum is 43.

The square root of 195525538 is about 13983.0446613032. The cubic root of 195525538 is about 580.4094789737.

The spelling of 195525538 in words is "one hundred ninety-five million, five hundred twenty-five thousand, five hundred thirty-eight".