80047520 has 48 divisors (see below), whose sum is σ = 216131328. Its totient is φ = 27444480.

The previous prime is 80047519. The next prime is 80047523. The reversal of 80047520 is 2574008.

It is a self number, because there is not a number n which added to its sum of digits gives 80047520.

It is not an unprimeable number, because it can be changed into a prime (80047523) 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, 34616 + ... + 36855.

It is an arithmetic number, because the mean of its divisors is an integer number (4502736).

Almost surely, 2^80047520 is an apocalyptic number.

80047520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80047520 is an abundant number, since it is smaller than the sum of its proper divisors (136083808).

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

80047520 is a wasteful number, since it uses less digits than its factorization.

80047520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71493 (or 71485 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 80047520 is about 8946.9279643909. The cubic root of 80047520 is about 430.9722367332.

The spelling of 80047520 in words is "eighty million, forty-seven thousand, five hundred twenty".