7255757 has 2 divisors, whose sum is σ = 7255758. Its totient is φ = 7255756.

The previous prime is 7255733. The next prime is 7255763. The reversal of 7255757 is 7575527.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3976036 + 3279721 = 1994^2 + 1811^2 .

It is an emirp because it is prime and its reverse (7575527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7255757 - 2⁶ = 7255693 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7255757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7255727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3627878 + 3627879.

It is an arithmetic number, because the mean of its divisors is an integer number (3627879).

Almost surely, 2^7255757 is an apocalyptic number.

It is an amenable number.

7255757 is a deficient number, since it is larger than the sum of its proper divisors (1).

7255757 is an equidigital number, since it uses as much as digits as its factorization.

7255757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85750, while the sum is 38.

The square root of 7255757 is about 2693.6512394889. The cubic root of 7255757 is about 193.5950475277.

The spelling of 7255757 in words is "seven million, two hundred fifty-five thousand, seven hundred fifty-seven".