172055533522 has 4 divisors (see below), whose sum is σ = 258083300286. Its totient is φ = 86027766760.

The previous prime is 172055533501. The next prime is 172055533547. The reversal of 172055533522 is 225335550271.

172055533522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 127542551161 + 44512982361 = 357131^2 + 210981^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43013883379 + ... + 43013883382.

Almost surely, 2^172055533522 is an apocalyptic number.

172055533522 is a deficient number, since it is larger than the sum of its proper divisors (86027766764).

172055533522 is an equidigital number, since it uses as much as digits as its factorization.

172055533522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86027766763.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 172055533522 in words is "one hundred seventy-two billion, fifty-five million, five hundred thirty-three thousand, five hundred twenty-two".