8525561 has 8 divisors (see below), whose sum is σ = 9323424. Its totient is φ = 7731520.

The previous prime is 8525557. The next prime is 8525579. The reversal of 8525561 is 1655258.

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 8525561 - 2² = 8525557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8525501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5870 + ... + 7176.

It is an arithmetic number, because the mean of its divisors is an integer number (1165428).

Almost surely, 2^8525561 is an apocalyptic number.

It is an amenable number.

8525561 is a deficient number, since it is larger than the sum of its proper divisors (797863).

8525561 is a wasteful number, since it uses less digits than its factorization.

8525561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its digits is 12000, while the sum is 32.

The square root of 8525561 is about 2919.8563320821. The cubic root of 8525561 is about 204.2871213305.

The spelling of 8525561 in words is "eight million, five hundred twenty-five thousand, five hundred sixty-one".