8025581 has 8 divisors (see below), whose sum is σ = 8945280. Its totient is φ = 7155648.

The previous prime is 8025569. The next prime is 8025601. The reversal of 8025581 is 1855208.

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 8025581 - 2⁶ = 8025517 is a prime.

It is a super-2 number, since 2×8025581² = 128819900775122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8025181) 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, 12101 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (1118160).

Almost surely, 2^8025581 is an apocalyptic number.

It is an amenable number.

8025581 is a deficient number, since it is larger than the sum of its proper divisors (919699).

8025581 is a wasteful number, since it uses less digits than its factorization.

8025581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24883.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 8025581 is about 2832.9456401421. The cubic root of 8025581 is about 200.2129481849.

The spelling of 8025581 in words is "eight million, twenty-five thousand, five hundred eighty-one".