172055284 has 12 divisors (see below), whose sum is σ = 301284900. Its totient is φ = 85973888.

The previous prime is 172055267. The next prime is 172055293. The reversal of 172055284 is 482550271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36844900 + 135210384 = 6070^2 + 11628^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5749 + ... + 19420.

It is an arithmetic number, because the mean of its divisors is an integer number (25107075).

Almost surely, 2^172055284 is an apocalyptic number.

It is an amenable number.

172055284 is a deficient number, since it is larger than the sum of its proper divisors (129229616).

172055284 is a wasteful number, since it uses less digits than its factorization.

172055284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26882 (or 26880 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 172055284 is about 13116.9845620097. The cubic root of 172055284 is about 556.1893537551.

The spelling of 172055284 in words is "one hundred seventy-two million, fifty-five thousand, two hundred eighty-four".