75550172 has 12 divisors (see below), whose sum is σ = 132952680. Its totient is φ = 37563696.

The previous prime is 75550171. The next prime is 75550199. The reversal of 75550172 is 27105557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75550171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52043 + ... + 53474.

It is an arithmetic number, because the mean of its divisors is an integer number (11079390).

Almost surely, 2^75550172 is an apocalyptic number.

It is an amenable number.

75550172 is a deficient number, since it is larger than the sum of its proper divisors (57402508).

75550172 is a wasteful number, since it uses less digits than its factorization.

75550172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105700 (or 105698 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 75550172 is about 8691.9601931900. The cubic root of 75550172 is about 422.7450059403.

The spelling of 75550172 in words is "seventy-five million, five hundred fifty thousand, one hundred seventy-two".