80825405 has 8 divisors (see below), whose sum is σ = 97105632. Its totient is φ = 64583568.

The previous prime is 80825389. The next prime is 80825413. The reversal of 80825405 is 50452808.

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

It is a cyclic number.

It is not a de Polignac number, because 80825405 - 2⁴ = 80825389 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, 4739 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (12138204).

Almost surely, 2^80825405 is an apocalyptic number.

It is an amenable number.

80825405 is a deficient number, since it is larger than the sum of its proper divisors (16280227).

80825405 is a wasteful number, since it uses less digits than its factorization.

80825405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19195.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 80825405 is about 8990.2950452140. The cubic root of 80825405 is about 432.3637714560.

The spelling of 80825405 in words is "eighty million, eight hundred twenty-five thousand, four hundred five".