80725172 has 12 divisors (see below), whose sum is σ = 154111776. Its totient is φ = 36693240.

The previous prime is 80725171. The next prime is 80725181. The reversal of 80725172 is 27152708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80725171) 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, 917288 + ... + 917375.

It is an arithmetic number, because the mean of its divisors is an integer number (12842648).

Almost surely, 2^80725172 is an apocalyptic number.

It is an amenable number.

80725172 is a deficient number, since it is larger than the sum of its proper divisors (73386604).

80725172 is a wasteful number, since it uses less digits than its factorization.

80725172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834678 (or 1834676 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 80725172 is about 8984.7188047262. The cubic root of 80725172 is about 432.1849702295.

The spelling of 80725172 in words is "eighty million, seven hundred twenty-five thousand, one hundred seventy-two".