80542528 has 28 divisors (see below), whose sum is σ = 174357792. Its totient is φ = 36609920.

The previous prime is 80542513. The next prime is 80542531. The reversal of 80542528 is 82524508.

It is a junction number, because it is equal to n+sod(n) for n = 80542493 and 80542502.

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, 56500 + ... + 57907.

It is an arithmetic number, because the mean of its divisors is an integer number (6227064).

Almost surely, 2^80542528 is an apocalyptic number.

80542528 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

80542528 is an abundant number, since it is smaller than the sum of its proper divisors (93815264).

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

80542528 is a wasteful number, since it uses less digits than its factorization.

80542528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114430 (or 114420 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 80542528 is about 8974.5489023126. The cubic root of 80542528 is about 431.8587787139.

The spelling of 80542528 in words is "eighty million, five hundred forty-two thousand, five hundred twenty-eight".