249958573 has 2 divisors, whose sum is σ = 249958574. Its totient is φ = 249958572.

The previous prime is 249958571. The next prime is 249958651. The reversal of 249958573 is 375859942.

249958573 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., 207734569 + 42224004 = 14413^2 + 6498^2 .

It is a cyclic number.

It is not a de Polignac number, because 249958573 - 2¹ = 249958571 is a prime.

Together with 249958571, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 249958573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249958571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124979286 + 124979287.

It is an arithmetic number, because the mean of its divisors is an integer number (124979287).

Almost surely, 2^249958573 is an apocalyptic number.

It is an amenable number.

249958573 is a deficient number, since it is larger than the sum of its proper divisors (1).

249958573 is an equidigital number, since it uses as much as digits as its factorization.

249958573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 52.

The square root of 249958573 is about 15810.0782098002. The cubic root of 249958573 is about 629.9257265257.

The spelling of 249958573 in words is "two hundred forty-nine million, nine hundred fifty-eight thousand, five hundred seventy-three".