80515272 has 32 divisors (see below), whose sum is σ = 210041280. Its totient is φ = 25671360.

The previous prime is 80515271. The next prime is 80515289. The reversal of 80515272 is 27251508.

It is not an unprimeable number, because it can be changed into a prime (80515271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72379 + ... + 73482.

It is an arithmetic number, because the mean of its divisors is an integer number (6563790).

Almost surely, 2^80515272 is an apocalyptic number.

It is an amenable number.

80515272 is an abundant number, since it is smaller than the sum of its proper divisors (129526008).

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

80515272 is a wasteful number, since it uses less digits than its factorization.

80515272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145893 (or 145889 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 80515272 is about 8973.0302573880. The cubic root of 80515272 is about 431.8100588174.

The spelling of 80515272 in words is "eighty million, five hundred fifteen thousand, two hundred seventy-two".