250813049 has 4 divisors (see below), whose sum is σ = 250941264. Its totient is φ = 250684836.

The previous prime is 250813039. The next prime is 250813061. The reversal of 250813049 is 940318052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 250813049 - 2¹² = 250808953 is a prime.

It is a super-3 number, since 3×250813049³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250813039) 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 in 3 ways as a sum of consecutive naturals, for example, 61127 + ... + 65100.

It is an arithmetic number, because the mean of its divisors is an integer number (62735316).

Almost surely, 2^250813049 is an apocalyptic number.

It is an amenable number.

250813049 is a deficient number, since it is larger than the sum of its proper divisors (128215).

250813049 is a wasteful number, since it uses less digits than its factorization.

250813049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128214.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 250813049 is about 15837.0782974638. The cubic root of 250813049 is about 630.6427043205.

The spelling of 250813049 in words is "two hundred fifty million, eight hundred thirteen thousand, forty-nine".