173242553 has 8 divisors (see below), whose sum is σ = 189537600. Its totient is φ = 157038480.

The previous prime is 173242499. The next prime is 173242561. The reversal of 173242553 is 355242371.

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 173242553 - 2⁸ = 173242297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173242583) 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, 18725 + ... + 26402.

It is an arithmetic number, because the mean of its divisors is an integer number (23692200).

Almost surely, 2^173242553 is an apocalyptic number.

It is an amenable number.

173242553 is a deficient number, since it is larger than the sum of its proper divisors (16295047).

173242553 is a wasteful number, since it uses less digits than its factorization.

173242553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45487.

The product of its digits is 25200, while the sum is 32.

The square root of 173242553 is about 13162.1636899106. The cubic root of 173242553 is about 557.4657521509.

The spelling of 173242553 in words is "one hundred seventy-three million, two hundred forty-two thousand, five hundred fifty-three".