249703748573 has 2 divisors, whose sum is σ = 249703748574. Its totient is φ = 249703748572.

The previous prime is 249703748543. The next prime is 249703748677. The reversal of 249703748573 is 375847307942.

249703748573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248684734489 + 1019014084 = 498683^2 + 31922^2 .

It is a cyclic number.

It is not a de Polignac number, because 249703748573 - 2²⁰ = 249702699997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249703748533) 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, 124851874286 + 124851874287.

It is an arithmetic number, because the mean of its divisors is an integer number (124851874287).

Almost surely, 2^249703748573 is an apocalyptic number.

It is an amenable number.

249703748573 is a deficient number, since it is larger than the sum of its proper divisors (1).

249703748573 is an equidigital number, since it uses as much as digits as its factorization.

249703748573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35562240, while the sum is 59.

The spelling of 249703748573 in words is "two hundred forty-nine billion, seven hundred three million, seven hundred forty-eight thousand, five hundred seventy-three".