80532172 has 24 divisors (see below), whose sum is σ = 166261760. Its totient is φ = 33400080.

The previous prime is 80532157. The next prime is 80532173. The reversal of 80532172 is 27123508.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 80532172.

It is not an unprimeable number, because it can be changed into a prime (80532173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45522 + ... + 47257.

Almost surely, 2^80532172 is an apocalyptic number.

It is an amenable number.

80532172 is an abundant number, since it is smaller than the sum of its proper divisors (85729588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80532172 is a wasteful number, since it uses less digits than its factorization.

80532172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92821 (or 92819 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 80532172 is about 8973.9719188328. The cubic root of 80532172 is about 431.8402687361.

The spelling of 80532172 in words is "eighty million, five hundred thirty-two thousand, one hundred seventy-two".