80825775 has 12 divisors (see below), whose sum is σ = 133632072. Its totient is φ = 43107040.

The previous prime is 80825741. The next prime is 80825777. The reversal of 80825775 is 57752808.

It is a happy number.

It is not a de Polignac number, because 80825775 - 2¹⁸ = 80563631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80825777) 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, 538764 + ... + 538913.

It is an arithmetic number, because the mean of its divisors is an integer number (11136006).

Almost surely, 2^80825775 is an apocalyptic number.

80825775 is a deficient number, since it is larger than the sum of its proper divisors (52806297).

80825775 is a wasteful number, since it uses less digits than its factorization.

80825775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077690 (or 1077685 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 80825775 is about 8990.3156229356. The cubic root of 80825775 is about 432.3644312087.

The spelling of 80825775 in words is "eighty million, eight hundred twenty-five thousand, seven hundred seventy-five".