7275257369 has 2 divisors, whose sum is σ = 7275257370. Its totient is φ = 7275257368.

The previous prime is 7275257299. The next prime is 7275257393. The reversal of 7275257369 is 9637525727.

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., 5559640969 + 1715616400 = 74563^2 + 41420^2 .

It is a cyclic number.

It is not a de Polignac number, because 7275257369 - 2³² = 2980290073 is a prime.

It is a super-2 number, since 2×7275257369² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7275257369.

It is not a weakly prime, because it can be changed into another prime (7275257399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3637628684 + 3637628685.

It is an arithmetic number, because the mean of its divisors is an integer number (3637628685).

Almost surely, 2^7275257369 is an apocalyptic number.

It is an amenable number.

7275257369 is a deficient number, since it is larger than the sum of its proper divisors (1).

7275257369 is an equidigital number, since it uses as much as digits as its factorization.

7275257369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5556600, while the sum is 53.

The square root of 7275257369 is about 85295.1192566140. The cubic root of 7275257369 is about 1937.6832592749.

The spelling of 7275257369 in words is "seven billion, two hundred seventy-five million, two hundred fifty-seven thousand, three hundred sixty-nine".