195552889 has 8 divisors (see below), whose sum is σ = 224011008. Its totient is φ = 167225280.

The previous prime is 195552869. The next prime is 195552899. The reversal of 195552889 is 988255591.

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

It is a cyclic number.

It is not a de Polignac number, because 195552889 - 2⁵ = 195552857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195552839) 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, 29392 + ... + 35425.

It is an arithmetic number, because the mean of its divisors is an integer number (28001376).

Almost surely, 2^195552889 is an apocalyptic number.

It is an amenable number.

195552889 is a deficient number, since it is larger than the sum of its proper divisors (28458119).

195552889 is an equidigital number, since it uses as much as digits as its factorization.

195552889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65255.

The product of its digits is 1296000, while the sum is 52.

The square root of 195552889 is about 13984.0226329908. The cubic root of 195552889 is about 580.4365411496.

The spelling of 195552889 in words is "one hundred ninety-five million, five hundred fifty-two thousand, eight hundred eighty-nine".