80505528 has 16 divisors (see below), whose sum is σ = 201263880. Its totient is φ = 26835168.

The previous prime is 80505517. The next prime is 80505553. The reversal of 80505528 is 82550508.

It is a super-2 number, since 2×80505528² = 12962280077117568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677175 + ... + 1677222.

Almost surely, 2^80505528 is an apocalyptic number.

It is an amenable number.

80505528 is an abundant number, since it is smaller than the sum of its proper divisors (120758352).

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

80505528 is a wasteful number, since it uses less digits than its factorization.

80505528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354406 (or 3354402 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 80505528 is about 8972.4872805705. The cubic root of 80505528 is about 431.7926388222.

The spelling of 80505528 in words is "eighty million, five hundred five thousand, five hundred twenty-eight".