250069 has 4 divisors (see below), whose sum is σ = 252396. Its totient is φ = 247744.

The previous prime is 250057. The next prime is 250073. The reversal of 250069 is 960052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131044 + 119025 = 362^2 + 345^2 .

It is a cyclic number.

It is not a de Polignac number, because 250069 - 2⁵ = 250037 is a prime.

It is a super-2 number, since 2×250069² = 125069009522, which contains 22 as substring.

It is a Duffinian number.

250069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994 + ... + 1219.

It is an arithmetic number, because the mean of its divisors is an integer number (63099).

250069 is a Friedman number, since it can be written as 500^2+69, using all its digits and the basic arithmetic operations.

2²⁵⁰⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

250069 is a deficient number, since it is larger than the sum of its proper divisors (2327).

250069 is a wasteful number, since it uses less digits than its factorization.

250069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 250069 is about 500.0689952397. The cubic root of 250069 is about 63.0018475985.

Subtracting from 250069 its sum of digits (22), we obtain a cube (250047 = 63³).

Adding to 250069 its reverse (960052), we get a palindrome (1210121).

The spelling of 250069 in words is "two hundred fifty thousand, sixty-nine".