249982669 has 2 divisors, whose sum is σ = 249982670. Its totient is φ = 249982668.

The previous prime is 249982657. The next prime is 249982703. The reversal of 249982669 is 966289942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249956100 + 26569 = 15810^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 249982669 - 2⁷ = 249982541 is a prime.

It is a super-2 number, since 2×249982669² = 124982669600727122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249982169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124991334 + 124991335.

It is an arithmetic number, because the mean of its divisors is an integer number (124991335).

Almost surely, 2^249982669 is an apocalyptic number.

It is an amenable number.

249982669 is a deficient number, since it is larger than the sum of its proper divisors (1).

249982669 is an equidigital number, since it uses as much as digits as its factorization.

249982669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 55.

The square root of 249982669 is about 15810.8402370020. The cubic root of 249982669 is about 629.9459674832.

The spelling of 249982669 in words is "two hundred forty-nine million, nine hundred eighty-two thousand, six hundred sixty-nine".