8245581 has 8 divisors (see below), whose sum is σ = 11201760. Its totient is φ = 5393232.

The previous prime is 8245579. The next prime is 8245621. The reversal of 8245581 is 1855428.

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

It is not a de Polignac number, because 8245581 - 2¹ = 8245579 is a prime.

It is a super-2 number, since 2×8245581² = 135979212055122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8245571) 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, 25771 + ... + 26088.

It is an arithmetic number, because the mean of its divisors is an integer number (1400220).

Almost surely, 2^8245581 is an apocalyptic number.

It is an amenable number.

8245581 is a deficient number, since it is larger than the sum of its proper divisors (2956179).

8245581 is a wasteful number, since it uses less digits than its factorization.

8245581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51915.

The product of its digits is 12800, while the sum is 33.

The square root of 8245581 is about 2871.5119710703. The cubic root of 8245581 is about 202.0259173359.

The spelling of 8245581 in words is "eight million, two hundred forty-five thousand, five hundred eighty-one".