195520027 has 4 divisors (see below), whose sum is σ = 195697440. Its totient is φ = 195342616.

The previous prime is 195519997. The next prime is 195520037. The reversal of 195520027 is 720025591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720025591 = 271 ⋅2656921.

It is a cyclic number.

It is not a de Polignac number, because 195520027 - 2²³ = 187131419 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195520037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87043 + ... + 89260.

It is an arithmetic number, because the mean of its divisors is an integer number (48924360).

Almost surely, 2^195520027 is an apocalyptic number.

195520027 is a deficient number, since it is larger than the sum of its proper divisors (177413).

195520027 is a wasteful number, since it uses less digits than its factorization.

195520027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177412.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 195520027 is about 13982.8475998274. The cubic root of 195520027 is about 580.4040258639.

The spelling of 195520027 in words is "one hundred ninety-five million, five hundred twenty thousand, twenty-seven".