80825765 has 8 divisors (see below), whose sum is σ = 97378848. Its totient is φ = 64402000.

The previous prime is 80825741. The next prime is 80825777. The reversal of 80825765 is 56752808.

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

It is not a de Polignac number, because 80825765 - 2¹⁰ = 80824741 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 30947 + ... + 33456.

It is an arithmetic number, because the mean of its divisors is an integer number (12172356).

Almost surely, 2^80825765 is an apocalyptic number.

It is an amenable number.

80825765 is a deficient number, since it is larger than the sum of its proper divisors (16553083).

80825765 is a wasteful number, since it uses less digits than its factorization.

80825765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64659.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 80825765 is about 8990.3150667816. The cubic root of 80825765 is about 432.3644133776.

The spelling of 80825765 in words is "eighty million, eight hundred twenty-five thousand, seven hundred sixty-five".