80992512 has 54 divisors (see below), whose sum is σ = 233528022. Its totient is φ = 26996736.

The previous prime is 80992511. The next prime is 80992517. The reversal of 80992512 is 21529908.

It can be written as a sum of positive squares in only one way, i.e., 43243776 + 37748736 = 6576^2 + 6144^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (80992511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15273 + ... + 19880.

It is an arithmetic number, because the mean of its divisors is an integer number (4324593).

Almost surely, 2^80992512 is an apocalyptic number.

It is an amenable number.

80992512 is an abundant number, since it is smaller than the sum of its proper divisors (152535510).

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

80992512 is a wasteful number, since it uses less digits than its factorization.

80992512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35175 (or 35158 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 80992512 is about 8999.5839903853. The cubic root of 80992512 is about 432.6615378853.

The spelling of 80992512 in words is "eighty million, nine hundred ninety-two thousand, five hundred twelve".