249996673 has 2 divisors, whose sum is σ = 249996674. Its totient is φ = 249996672.

The previous prime is 249996671. The next prime is 249996697. The reversal of 249996673 is 376699942.

249996673 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., 249861249 + 135424 = 15807^2 + 368^2 .

It is a cyclic number.

It is not a de Polignac number, because 249996673 - 2¹ = 249996671 is a prime.

It is a super-2 number, since 2×249996673² = 124996673022137858, which contains 22 as substring.

Together with 249996671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (249996671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124998336 + 124998337.

It is an arithmetic number, because the mean of its divisors is an integer number (124998337).

Almost surely, 2^249996673 is an apocalyptic number.

It is an amenable number.

249996673 is a deficient number, since it is larger than the sum of its proper divisors (1).

249996673 is an equidigital number, since it uses as much as digits as its factorization.

249996673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 55.

The square root of 249996673 is about 15811.2830915141. The cubic root of 249996673 is about 629.9577304302.

The spelling of 249996673 in words is "two hundred forty-nine million, nine hundred ninety-six thousand, six hundred seventy-three".