253249 has 4 divisors (see below), whose sum is σ = 268164. Its totient is φ = 238336.

The previous prime is 253247. The next prime is 253273. The reversal of 253249 is 942352.

It is a happy number.

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 219024 + 34225 = 468^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 253249 - 2¹ = 253247 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 5³ + 2⁹ + 3¹¹ + 4⁷ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253243) 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, 7432 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (67041).

2²⁵³²⁴⁹ is an apocalyptic number.

It is an amenable number.

253249 is a deficient number, since it is larger than the sum of its proper divisors (14915).

253249 is a wasteful number, since it uses less digits than its factorization.

253249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14914.

The product of its digits is 2160, while the sum is 25.

The square root of 253249 is about 503.2385120398. The cubic root of 253249 is about 63.2677776583.

It can be divided in two parts, 25 and 3249, that multiplied together give a square (81225 = 285²).

The spelling of 253249 in words is "two hundred fifty-three thousand, two hundred forty-nine".