250969 has 2 divisors, whose sum is σ = 250970. Its totient is φ = 250968.

The previous prime is 250967. The next prime is 250979. The reversal of 250969 is 969052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169744 + 81225 = 412^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 250969 - 2¹ = 250967 is a prime.

It is a super-2 number, since 2×250969² = 125970877922, which contains 22 as substring.

Together with 250967, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 250969.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125484 + 125485.

It is an arithmetic number, because the mean of its divisors is an integer number (125485).

2²⁵⁰⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

250969 is a deficient number, since it is larger than the sum of its proper divisors (1).

250969 is an equidigital number, since it uses as much as digits as its factorization.

250969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 250969 is about 500.9680628543. The cubic root of 250969 is about 63.0773384634.

The spelling of 250969 in words is "two hundred fifty thousand, nine hundred sixty-nine".