195395454553 has 8 divisors (see below), whose sum is σ = 213875479496. Its totient is φ = 177408230400.

The previous prime is 195395454521. The next prime is 195395454557. The reversal of 195395454553 is 355454593591.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43952283904 + 151443170649 = 209648^2 + 389157^2 .

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 195395454553 - 2⁵ = 195395454521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195395454557) 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, 123199368 + ... + 123200953.

It is an arithmetic number, because the mean of its divisors is an integer number (26734434937).

Almost surely, 2^195395454553 is an apocalyptic number.

195395454553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

195395454553 is a deficient number, since it is larger than the sum of its proper divisors (18480024943).

195395454553 is a wasteful number, since it uses less digits than its factorization.

195395454553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246400395.

The product of its digits is 36450000, while the sum is 58.

The spelling of 195395454553 in words is "one hundred ninety-five billion, three hundred ninety-five million, four hundred fifty-four thousand, five hundred fifty-three".