251253 has 6 divisors (see below), whose sum is σ = 362934. Its totient is φ = 167496.

The previous prime is 251233. The next prime is 251257. The reversal of 251253 is 352152.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 248004 + 3249 = 498^2 + 57^2 .

It is not a de Polignac number, because 251253 - 2⁵ = 251221 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 251253.

It is not an unprimeable number, because it can be changed into a prime (251257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13950 + ... + 13967.

It is an arithmetic number, because the mean of its divisors is an integer number (60489).

2²⁵¹²⁵³ is an apocalyptic number.

It is an amenable number.

251253 is a deficient number, since it is larger than the sum of its proper divisors (111681).

251253 is a wasteful number, since it uses less digits than its factorization.

251253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27923 (or 27920 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 251253 is about 501.2514339132. The cubic root of 251253 is about 63.1011225577.

The spelling of 251253 in words is "two hundred fifty-one thousand, two hundred fifty-three".