172505152 has 28 divisors (see below), whose sum is σ = 357201216. Its totient is φ = 82501760.

The previous prime is 172505147. The next prime is 172505167. The reversal of 172505152 is 251505271.

It is a self number, because there is not a number n which added to its sum of digits gives 172505152.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57124 + ... + 60067.

Almost surely, 2^172505152 is an apocalyptic number.

It is an amenable number.

172505152 is an abundant number, since it is smaller than the sum of its proper divisors (184696064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172505152 is a wasteful number, since it uses less digits than its factorization.

172505152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117226 (or 117216 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 172505152 is about 13134.1216683873. The cubic root of 172505152 is about 556.6736826459.

The spelling of 172505152 in words is "one hundred seventy-two million, five hundred five thousand, one hundred fifty-two".