80755625 has 10 divisors (see below), whose sum is σ = 100913010. Its totient is φ = 64604000.

The previous prime is 80755621. The next prime is 80755637. The reversal of 80755625 is 52655708.

It can be written as a sum of positive squares in 5 ways, for example, as 56911936 + 23843689 = 7544^2 + 4883^2 .

It is not a de Polignac number, because 80755625 - 2² = 80755621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80755621) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 63980 + ... + 65229.

It is an arithmetic number, because the mean of its divisors is an integer number (10091301).

Almost surely, 2^80755625 is an apocalyptic number.

It is an amenable number.

80755625 is a deficient number, since it is larger than the sum of its proper divisors (20157385).

80755625 is an equidigital number, since it uses as much as digits as its factorization.

80755625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129229 (or 129214 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 80755625 is about 8986.4133557276. The cubic root of 80755625 is about 432.2393096378.

The spelling of 80755625 in words is "eighty million, seven hundred fifty-five thousand, six hundred twenty-five".