195525681 has 8 divisors (see below), whose sum is σ = 280754880. Its totient is φ = 120323472.

The previous prime is 195525647. The next prime is 195525683. The reversal of 195525681 is 186525591.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195525681 - 2²² = 191331377 is a prime.

It is a super-2 number, since 2×195525681² = 76460583861027522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195525683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506701 + ... + 2506778.

It is an arithmetic number, because the mean of its divisors is an integer number (35094360).

Almost surely, 2^195525681 is an apocalyptic number.

It is an amenable number.

195525681 is a deficient number, since it is larger than the sum of its proper divisors (85229199).

195525681 is a wasteful number, since it uses less digits than its factorization.

195525681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013495.

The product of its digits is 108000, while the sum is 42.

The square root of 195525681 is about 13983.0497746379. The cubic root of 195525681 is about 580.4096204702.

The spelling of 195525681 in words is "one hundred ninety-five million, five hundred twenty-five thousand, six hundred eighty-one".