7508533397 has 2 divisors, whose sum is σ = 7508533398. Its totient is φ = 7508533396.

The previous prime is 7508533393. The next prime is 7508533399. The reversal of 7508533397 is 7933358057.

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., 7084420561 + 424112836 = 84169^2 + 20594^2 .

It is a cyclic number.

It is not a de Polignac number, because 7508533397 - 2² = 7508533393 is a prime.

Together with 7508533399, 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 (7508533393) 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, 3754266698 + 3754266699.

It is an arithmetic number, because the mean of its divisors is an integer number (3754266699).

Almost surely, 2^7508533397 is an apocalyptic number.

It is an amenable number.

7508533397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7508533397 is an equidigital number, since it uses as much as digits as its factorization.

7508533397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 50.

The square root of 7508533397 is about 86651.7939629642. The cubic root of 7508533397 is about 1958.1759196452.

The spelling of 7508533397 in words is "seven billion, five hundred eight million, five hundred thirty-three thousand, three hundred ninety-seven".