195255772 has 6 divisors (see below), whose sum is σ = 341697608. Its totient is φ = 97627884.

The previous prime is 195255743. The next prime is 195255779. The reversal of 195255772 is 277552591.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195255779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24406968 + ... + 24406975.

Almost surely, 2^195255772 is an apocalyptic number.

It is an amenable number.

195255772 is a deficient number, since it is larger than the sum of its proper divisors (146441836).

195255772 is a wasteful number, since it uses less digits than its factorization.

195255772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48813947 (or 48813945 counting only the distinct ones).

The product of its digits is 220500, while the sum is 43.

The square root of 195255772 is about 13973.3951493544. The cubic root of 195255772 is about 580.1424263781.

The spelling of 195255772 in words is "one hundred ninety-five million, two hundred fifty-five thousand, seven hundred seventy-two".