80560540 has 24 divisors (see below), whose sum is σ = 169646400. Its totient is φ = 32134848.

The previous prime is 80560471. The next prime is 80560541. The reversal of 80560540 is 4506508.

It is a junction number, because it is equal to n+sod(n) for n = 80560499 and 80560508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80560541) 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, 2061 + ... + 12859.

It is an arithmetic number, because the mean of its divisors is an integer number (7068600).

Almost surely, 2^80560540 is an apocalyptic number.

It is an amenable number.

80560540 is an abundant number, since it is smaller than the sum of its proper divisors (89085860).

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

80560540 is a wasteful number, since it uses less digits than its factorization.

80560540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181 (or 11179 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 80560540 is about 8975.5523506913. The cubic root of 80560540 is about 431.8909689978.

The spelling of 80560540 in words is "eighty million, five hundred sixty thousand, five hundred forty".