80825421 has 8 divisors (see below), whose sum is σ = 107940544. Its totient is φ = 53796960.

The previous prime is 80825419. The next prime is 80825431. The reversal of 80825421 is 12452808.

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

It is not a de Polignac number, because 80825421 - 2¹ = 80825419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80825431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19456 + ... + 23241.

It is an arithmetic number, because the mean of its divisors is an integer number (13492568).

Almost surely, 2^80825421 is an apocalyptic number.

It is an amenable number.

80825421 is a deficient number, since it is larger than the sum of its proper divisors (27115123).

80825421 is a wasteful number, since it uses less digits than its factorization.

80825421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43331.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 80825421 is about 8990.2959350624. The cubic root of 80825421 is about 432.3637999859.

The spelling of 80825421 in words is "eighty million, eight hundred twenty-five thousand, four hundred twenty-one".