250443196249 has 3 divisors (see below), whose sum is σ = 250443696693. Its totient is φ = 250442695806.

The previous prime is 250443196247. The next prime is 250443196271. The reversal of 250443196249 is 942691344052.

The square root of 250443196249 is 500443.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 250443196249 - 2¹ = 250443196247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250443196243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 250222 + ... + 750664.

It is an arithmetic number, because the mean of its divisors is an integer number (83481232231).

Almost surely, 2^250443196249 is an apocalyptic number.

250443196249 is the 500443-rd square number.

250443196249 is the 250222-nd centered octagonal number.

It is an amenable number.

250443196249 is a deficient number, since it is larger than the sum of its proper divisors (500444).

250443196249 is an frugal number, since it uses more digits than its factorization.

250443196249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000886 (or 500443 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

Multiplying 250443196249 by its sum of digits (49), we get a square (12271716616201 = 3503101²).

The spelling of 250443196249 in words is "two hundred fifty billion, four hundred forty-three million, one hundred ninety-six thousand, two hundred forty-nine".