253365 has 32 divisors (see below), whose sum is σ = 491520. Its totient is φ = 108864.

The previous prime is 253361. The next prime is 253367. The reversal of 253365 is 563352.

It is not a de Polignac number, because 253365 - 2² = 253361 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 253365.

It is not an unprimeable number, because it can be changed into a prime (253361) 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 31 ways as a sum of consecutive naturals, for example, 1932 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (15360).

2²⁵³³⁶⁵ is an apocalyptic number.

It is an amenable number.

253365 is a deficient number, since it is larger than the sum of its proper divisors (238155).

253365 is a wasteful number, since it uses less digits than its factorization.

253365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161.

The product of its digits is 2700, while the sum is 24.

The square root of 253365 is about 503.3537523452. The cubic root of 253365 is about 63.2774360603.

The spelling of 253365 in words is "two hundred fifty-three thousand, three hundred sixty-five".