195599225 has 6 divisors (see below), whose sum is σ = 242543070. Its totient is φ = 156479360.

The previous prime is 195599221. The next prime is 195599237. The reversal of 195599225 is 522995591.

It can be written as a sum of positive squares in 3 ways, for example, as 27741289 + 167857936 = 5267^2 + 12956^2 .

It is not a de Polignac number, because 195599225 - 2² = 195599221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195599225.

It is not an unprimeable number, because it can be changed into a prime (195599221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3911960 + ... + 3912009.

It is an arithmetic number, because the mean of its divisors is an integer number (40423845).

Almost surely, 2^195599225 is an apocalyptic number.

It is an amenable number.

195599225 is a deficient number, since it is larger than the sum of its proper divisors (46943845).

195599225 is an equidigital number, since it uses as much as digits as its factorization.

195599225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823979 (or 7823974 counting only the distinct ones).

The product of its digits is 364500, while the sum is 47.

The square root of 195599225 is about 13985.6792827521. The cubic root of 195599225 is about 580.4823820876.

The spelling of 195599225 in words is "one hundred ninety-five million, five hundred ninety-nine thousand, two hundred twenty-five".