8525247 has 4 divisors (see below), whose sum is σ = 11367000. Its totient is φ = 5683496.

The previous prime is 8525239. The next prime is 8525261. The reversal of 8525247 is 7425258.

8525247 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8525247 - 2³ = 8525239 is a prime.

It is a super-2 number, since 2×8525247² = 145359672822018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8525227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420872 + ... + 1420877.

It is an arithmetic number, because the mean of its divisors is an integer number (2841750).

Almost surely, 2^8525247 is an apocalyptic number.

8525247 is a deficient number, since it is larger than the sum of its proper divisors (2841753).

8525247 is a wasteful number, since it uses less digits than its factorization.

8525247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841752.

The product of its digits is 22400, while the sum is 33.

The square root of 8525247 is about 2919.8025618182. The cubic root of 8525247 is about 204.2846133062.

The spelling of 8525247 in words is "eight million, five hundred twenty-five thousand, two hundred forty-seven".