253215 has 24 divisors (see below), whose sum is σ = 466128. Its totient is φ = 126720.

The previous prime is 253159. The next prime is 253229. The reversal of 253215 is 512352.

It is a happy number.

It is not a de Polignac number, because 253215 - 2¹³ = 245023 is a prime.

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 253215.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 600 + ... + 930.

It is an arithmetic number, because the mean of its divisors is an integer number (19422).

2²⁵³²¹⁵ is an apocalyptic number.

253215 is a deficient number, since it is larger than the sum of its proper divisors (212913).

253215 is a wasteful number, since it uses less digits than its factorization.

253215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 356 counting only the distinct ones).

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

The square root of 253215 is about 503.2047297075. The cubic root of 253215 is about 63.2649461885.

Adding to 253215 its reverse (512352), we get a palindrome (765567).

It can be divided in two parts, 25 and 3215, that added together give a triangular number (3240 = T₈₀).

The spelling of 253215 in words is "two hundred fifty-three thousand, two hundred fifteen".