8525549 has 4 divisors (see below), whose sum is σ = 8652864. Its totient is φ = 8398236.

The previous prime is 8525521. The next prime is 8525557. The reversal of 8525549 is 9455258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8525549 - 2¹² = 8521453 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 (8525579) 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 3 ways as a sum of consecutive naturals, for example, 63557 + ... + 63690.

It is an arithmetic number, because the mean of its divisors is an integer number (2163216).

Almost surely, 2^8525549 is an apocalyptic number.

It is an amenable number.

8525549 is a deficient number, since it is larger than the sum of its proper divisors (127315).

8525549 is a wasteful number, since it uses less digits than its factorization.

8525549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127314.

The product of its digits is 72000, while the sum is 38.

The square root of 8525549 is about 2919.8542771858. The cubic root of 8525549 is about 204.2870254836.

It can be divided in two parts, 85255 and 49, that multiplied together give a triangular number (4177495 = T₂₈₉₀).

The spelling of 8525549 in words is "eight million, five hundred twenty-five thousand, five hundred forty-nine".