80521334 has 4 divisors (see below), whose sum is σ = 120782004. Its totient is φ = 40260666.

The previous prime is 80521319. The next prime is 80521351. The reversal of 80521334 is 43312508.

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

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 20130332 + ... + 20130335.

It is an arithmetic number, because the mean of its divisors is an integer number (30195501).

Almost surely, 2^80521334 is an apocalyptic number.

80521334 is a deficient number, since it is larger than the sum of its proper divisors (40260670).

80521334 is a wasteful number, since it uses less digits than its factorization.

80521334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40260669.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 80521334 is about 8973.3680410423. The cubic root of 80521334 is about 431.8208955478.

The spelling of 80521334 in words is "eighty million, five hundred twenty-one thousand, three hundred thirty-four".