8525261 has 2 divisors, whose sum is σ = 8525262. Its totient is φ = 8525260.

The previous prime is 8525239. The next prime is 8525263. The reversal of 8525261 is 1625258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5669161 + 2856100 = 2381^2 + 1690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8525261 is a prime.

Together with 8525263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8525263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4262630 + 4262631.

It is an arithmetic number, because the mean of its divisors is an integer number (4262631).

Almost surely, 2^8525261 is an apocalyptic number.

It is an amenable number.

8525261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8525261 is an equidigital number, since it uses as much as digits as its factorization.

8525261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

The square root of 8525261 is about 2919.8049592396. The cubic root of 8525261 is about 204.2847251302.

The spelling of 8525261 in words is "eight million, five hundred twenty-five thousand, two hundred sixty-one".