80745533 has 8 divisors (see below), whose sum is σ = 88282656. Its totient is φ = 73241200.

The previous prime is 80745527. The next prime is 80745547. The reversal of 80745533 is 33554708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80745533 - 2²⁰ = 79696957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80745493 and 80745502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80741533) 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 7 ways as a sum of consecutive naturals, for example, 2891 + ... + 13032.

It is an arithmetic number, because the mean of its divisors is an integer number (11035332).

Almost surely, 2^80745533 is an apocalyptic number.

It is an amenable number.

80745533 is a deficient number, since it is larger than the sum of its proper divisors (7537123).

80745533 is a wasteful number, since it uses less digits than its factorization.

80745533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16395.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 80745533 is about 8985.8518238395. The cubic root of 80745533 is about 432.2213032932.

The spelling of 80745533 in words is "eighty million, seven hundred forty-five thousand, five hundred thirty-three".