7545413257 has 2 divisors, whose sum is σ = 7545413258. Its totient is φ = 7545413256.

The previous prime is 7545413251. The next prime is 7545413273. The reversal of 7545413257 is 7523145457.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6795694096 + 749719161 = 82436^2 + 27381^2 .

It is an emirp because it is prime and its reverse (7523145457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7545413257 - 2¹⁹ = 7544888969 is a prime.

It is a super-2 number, since 2×7545413257² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7545413251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3772706628 + 3772706629.

It is an arithmetic number, because the mean of its divisors is an integer number (3772706629).

Almost surely, 2^7545413257 is an apocalyptic number.

It is an amenable number.

7545413257 is a deficient number, since it is larger than the sum of its proper divisors (1).

7545413257 is an equidigital number, since it uses as much as digits as its factorization.

7545413257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 588000, while the sum is 43.

The square root of 7545413257 is about 86864.3382349742. The cubic root of 7545413257 is about 1961.3766928819.

The spelling of 7545413257 in words is "seven billion, five hundred forty-five million, four hundred thirteen thousand, two hundred fifty-seven".