172505260 has 12 divisors (see below), whose sum is σ = 362261088. Its totient is φ = 69002096.

The previous prime is 172505251. The next prime is 172505287. The reversal of 172505260 is 62505271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4312612 + ... + 4312651.

It is an arithmetic number, because the mean of its divisors is an integer number (30188424).

Almost surely, 2^172505260 is an apocalyptic number.

172505260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172505260 is an abundant number, since it is smaller than the sum of its proper divisors (189755828).

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

172505260 is a wasteful number, since it uses less digits than its factorization.

172505260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625272 (or 8625270 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 172505260 is about 13134.1257798150. The cubic root of 172505260 is about 556.6737988178.

The spelling of 172505260 in words is "one hundred seventy-two million, five hundred five thousand, two hundred sixty".