195157553 has 8 divisors (see below), whose sum is σ = 205661376. Its totient is φ = 184822000.

The previous prime is 195157549. The next prime is 195157577. The reversal of 195157553 is 355751591.

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 195157553 - 2² = 195157549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195157553.

It is not an unprimeable number, because it can be changed into a prime (195157513) 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, 39683 + ... + 44328.

It is an arithmetic number, because the mean of its divisors is an integer number (25707672).

Almost surely, 2^195157553 is an apocalyptic number.

It is an amenable number.

195157553 is a deficient number, since it is larger than the sum of its proper divisors (10503823).

195157553 is a wasteful number, since it uses less digits than its factorization.

195157553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84135.

The product of its digits is 118125, while the sum is 41.

The square root of 195157553 is about 13969.8802070741. The cubic root of 195157553 is about 580.0451342205.

The spelling of 195157553 in words is "one hundred ninety-five million, one hundred fifty-seven thousand, five hundred fifty-three".