80544534 has 48 divisors (see below), whose sum is σ = 197265600. Its totient is φ = 21800016.

The previous prime is 80544533. The next prime is 80544559. The reversal of 80544534 is 43544508.

It is a junction number, because it is equal to n+sod(n) for n = 80544495 and 80544504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80544533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1624 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (4109700).

Almost surely, 2^80544534 is an apocalyptic number.

80544534 is an abundant number, since it is smaller than the sum of its proper divisors (116721066).

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

80544534 is a wasteful number, since it uses less digits than its factorization.

80544534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14457 (or 14450 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 80544534 is about 8974.6606621086. The cubic root of 80544534 is about 431.8623639896.

The spelling of 80544534 in words is "eighty million, five hundred forty-four thousand, five hundred thirty-four".