7725241 has 2 divisors, whose sum is σ = 7725242. Its totient is φ = 7725240.

The previous prime is 7725239. The next prime is 7725269. The reversal of 7725241 is 1425277.

It is an a-pointer prime, because the next prime (7725269) can be obtained adding 7725241 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5779216 + 1946025 = 2404^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 7725241 - 2¹ = 7725239 is a prime.

Together with 7725239, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7725271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3862620 + 3862621.

It is an arithmetic number, because the mean of its divisors is an integer number (3862621).

Almost surely, 2^7725241 is an apocalyptic number.

It is an amenable number.

7725241 is a deficient number, since it is larger than the sum of its proper divisors (1).

7725241 is an equidigital number, since it uses as much as digits as its factorization.

7725241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 28.

The square root of 7725241 is about 2779.4317764608. The cubic root of 7725241 is about 197.6836170915.

The spelling of 7725241 in words is "seven million, seven hundred twenty-five thousand, two hundred forty-one".