253855 has 8 divisors (see below), whose sum is σ = 348192. Its totient is φ = 174048.

The previous prime is 253853. The next prime is 253867. The reversal of 253855 is 558352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253855 - 2¹ = 253853 is a prime.

It is a super-2 number, since 2×253855² = 128884722050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3592 + ... + 3661.

It is an arithmetic number, because the mean of its divisors is an integer number (43524).

2²⁵³⁸⁵⁵ is an apocalyptic number.

253855 is a deficient number, since it is larger than the sum of its proper divisors (94337).

253855 is an equidigital number, since it uses as much as digits as its factorization.

253855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7265.

The product of its digits is 6000, while the sum is 28.

The square root of 253855 is about 503.8402524610. The cubic root of 253855 is about 63.3182019869.

The spelling of 253855 in words is "two hundred fifty-three thousand, eight hundred fifty-five".