80812573 has 4 divisors (see below), whose sum is σ = 80851840. Its totient is φ = 80773308.

The previous prime is 80812559. The next prime is 80812583. The reversal of 80812573 is 37521808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80812573 - 2¹⁷ = 80681501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80812553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16365 + ... + 20722.

It is an arithmetic number, because the mean of its divisors is an integer number (20212960).

Almost surely, 2^80812573 is an apocalyptic number.

It is an amenable number.

80812573 is a deficient number, since it is larger than the sum of its proper divisors (39267).

80812573 is a wasteful number, since it uses less digits than its factorization.

80812573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39266.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 80812573 is about 8989.5813584393. The cubic root of 80812573 is about 432.3408892712.

The spelling of 80812573 in words is "eighty million, eight hundred twelve thousand, five hundred seventy-three".