172055305526 has 16 divisors (see below), whose sum is σ = 286901155968. Its totient is φ = 76848523200.

The previous prime is 172055305451. The next prime is 172055305553. The reversal of 172055305526 is 625503550271.

It is a happy number.

172055305526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172055305526² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 106733255 + ... + 106734866.

It is an arithmetic number, because the mean of its divisors is an integer number (17931322248).

Almost surely, 2^172055305526 is an apocalyptic number.

172055305526 is a deficient number, since it is larger than the sum of its proper divisors (114845850442).

172055305526 is a wasteful number, since it uses less digits than its factorization.

172055305526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213468167.

The product of its (nonzero) digits is 315000, while the sum is 41.

Adding to 172055305526 its reverse (625503550271), we get a palindrome (797558855797).

The spelling of 172055305526 in words is "one hundred seventy-two billion, fifty-five million, three hundred five thousand, five hundred twenty-six".