172501500889 has 9 divisors (see below), whose sum is σ = 175142831157. Its totient is φ = 169899439644.

The previous prime is 172501500883. The next prime is 172501500901. The reversal of 172501500889 is 988005105271.

The square root of 172501500889 is 415333.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 172501500889 - 2³ = 172501500881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172501500881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27824212 + ... + 27830410.

It is an arithmetic number, because the mean of its divisors is an integer number (19460314573).

Almost surely, 2^172501500889 is an apocalyptic number.

172501500889 is the 415333-rd square number.

172501500889 is the 207667-th centered octagonal number.

It is an amenable number.

172501500889 is a deficient number, since it is larger than the sum of its proper divisors (2641330268).

172501500889 is an frugal number, since it uses more digits than its factorization.

172501500889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12532 (or 6266 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 46.

The spelling of 172501500889 in words is "one hundred seventy-two billion, five hundred one million, five hundred thousand, eight hundred eighty-nine".