195420444025 has 12 divisors (see below), whose sum is σ = 244064674000. Its totient is φ = 155211630480.

The previous prime is 195420444001. The next prime is 195420444031. The reversal of 195420444025 is 520444024591.

It is not a de Polignac number, because 195420444025 - 2¹¹ = 195420441977 is a prime.

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, 28114575 + ... + 28121524.

Almost surely, 2^195420444025 is an apocalyptic number.

It is an amenable number.

195420444025 is a deficient number, since it is larger than the sum of its proper divisors (48644229975).

195420444025 is a wasteful number, since it uses less digits than its factorization.

195420444025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56236248 (or 56236243 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 195420444025 in words is "one hundred ninety-five billion, four hundred twenty million, four hundred forty-four thousand, twenty-five".