172068550 has 12 divisors (see below), whose sum is σ = 320047596. Its totient is φ = 68827400.

The previous prime is 172068527. The next prime is 172068553. The reversal of 172068550 is 55860271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172068553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1720636 + ... + 1720735.

It is an arithmetic number, because the mean of its divisors is an integer number (26670633).

Almost surely, 2^172068550 is an apocalyptic number.

172068550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172068550 is a deficient number, since it is larger than the sum of its proper divisors (147979046).

172068550 is a wasteful number, since it uses less digits than its factorization.

172068550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441383 (or 3441378 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 172068550 is about 13117.4902325102. The cubic root of 172068550 is about 556.2036480334.

The spelling of 172068550 in words is "one hundred seventy-two million, sixty-eight thousand, five hundred fifty".