80530578 has 32 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 26797680.

The previous prime is 80530577. The next prime is 80530603. The reversal of 80530578 is 87503508.

It is a happy number.

80530578 is a `hidden beast` number, since 80 + 5 + 3 + 0 + 578 = 666.

It is not an unprimeable number, because it can be changed into a prime (80530577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48376 + ... + 50012.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^80530578 is an apocalyptic number.

80530578 is an abundant number, since it is smaller than the sum of its proper divisors (98732142).

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

80530578 is a wasteful number, since it uses less digits than its factorization.

80530578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 80530578 is about 8973.8831059915. The cubic root of 80530578 is about 431.8374195314.

The spelling of 80530578 in words is "eighty million, five hundred thirty thousand, five hundred seventy-eight".