253087 has 4 divisors (see below), whose sum is σ = 254176. Its totient is φ = 252000.

The previous prime is 253081. The next prime is 253103. The reversal of 253087 is 780352.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253087 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 5⁵ + 0 + 3⁶ + 8³ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39 + ... + 712.

It is an arithmetic number, because the mean of its divisors is an integer number (63544).

253087 is a Friedman number, since it can be written as 503^2+78, using all its digits and the basic arithmetic operations.

2²⁵³⁰⁸⁷ is an apocalyptic number.

253087 is a deficient number, since it is larger than the sum of its proper divisors (1089).

253087 is an equidigital number, since it uses as much as digits as its factorization.

253087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 253087 is about 503.0775288164. The cubic root of 253087 is about 63.2542842635.

The spelling of 253087 in words is "two hundred fifty-three thousand, eighty-seven".