195440725 has 12 divisors (see below), whose sum is σ = 242548960. Its totient is φ = 156222000.

The previous prime is 195440701. The next prime is 195440753. The reversal of 195440725 is 527044591.

It is a de Polignac number, because none of the positive numbers 2^k-195440725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37000 + ... + 41950.

Almost surely, 2^195440725 is an apocalyptic number.

It is an amenable number.

195440725 is a deficient number, since it is larger than the sum of its proper divisors (47108235).

195440725 is a wasteful number, since it uses less digits than its factorization.

195440725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6540 (or 6535 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 195440725 is about 13980.0116237434. The cubic root of 195440725 is about 580.3255455415.

The spelling of 195440725 in words is "one hundred ninety-five million, four hundred forty thousand, seven hundred twenty-five".