80660825 has 12 divisors (see below), whose sum is σ = 114308160. Its totient is φ = 55310160.

The previous prime is 80660821. The next prime is 80660837. The reversal of 80660825 is 52806608.

It is not a de Polignac number, because 80660825 - 2² = 80660821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (80660821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230285 + ... + 230634.

It is an arithmetic number, because the mean of its divisors is an integer number (9525680).

Almost surely, 2^80660825 is an apocalyptic number.

It is an amenable number.

80660825 is a deficient number, since it is larger than the sum of its proper divisors (33647335).

80660825 is a wasteful number, since it uses less digits than its factorization.

80660825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460936 (or 460931 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 80660825 is about 8981.1371774403. The cubic root of 80660825 is about 432.0701064349.

The spelling of 80660825 in words is "eighty million, six hundred sixty thousand, eight hundred twenty-five".