80539534 has 4 divisors (see below), whose sum is σ = 120809304. Its totient is φ = 40269766.

The previous prime is 80539531. The next prime is 80539541. The reversal of 80539534 is 43593508.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 80539493 and 80539502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80539531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20134882 + ... + 20134885.

It is an arithmetic number, because the mean of its divisors is an integer number (30202326).

Almost surely, 2^80539534 is an apocalyptic number.

80539534 is a deficient number, since it is larger than the sum of its proper divisors (40269770).

80539534 is a wasteful number, since it uses less digits than its factorization.

80539534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40269769.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 80539534 is about 8974.3820957211. The cubic root of 80539534 is about 431.8534274987.

The spelling of 80539534 in words is "eighty million, five hundred thirty-nine thousand, five hundred thirty-four".