80825529 has 4 divisors (see below), whose sum is σ = 107767376. Its totient is φ = 53883684.

The previous prime is 80825471. The next prime is 80825533. The reversal of 80825529 is 92552808.

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 not a de Polignac number, because 80825529 - 2⁸ = 80825273 is a prime.

It is a super-2 number, since 2×80825529² = 13065532276259682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80825539) 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 3 ways as a sum of consecutive naturals, for example, 13470919 + ... + 13470924.

It is an arithmetic number, because the mean of its divisors is an integer number (26941844).

Almost surely, 2^80825529 is an apocalyptic number.

It is an amenable number.

80825529 is a deficient number, since it is larger than the sum of its proper divisors (26941847).

80825529 is a wasteful number, since it uses less digits than its factorization.

80825529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26941846.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 80825529 is about 8990.3019415368. The cubic root of 80825529 is about 432.3639925625.

The spelling of 80825529 in words is "eighty million, eight hundred twenty-five thousand, five hundred twenty-nine".