8525905 has 4 divisors (see below), whose sum is σ = 10231092. Its totient is φ = 6820720.

The previous prime is 8525897. The next prime is 8525969. The reversal of 8525905 is 5095258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3721041 + 4804864 = 1929^2 + 2192^2 .

It is not a de Polignac number, because 8525905 - 2³ = 8525897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852586 + ... + 852595.

It is an arithmetic number, because the mean of its divisors is an integer number (2557773).

Almost surely, 2^8525905 is an apocalyptic number.

It is an amenable number.

8525905 is a deficient number, since it is larger than the sum of its proper divisors (1705187).

8525905 is a wasteful number, since it uses less digits than its factorization.

8525905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705186.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 8525905 is about 2919.9152384958. The cubic root of 8525905 is about 204.2898689043.

The spelling of 8525905 in words is "eight million, five hundred twenty-five thousand, nine hundred five".