253963 has 4 divisors (see below), whose sum is σ = 268920. Its totient is φ = 239008.

The previous prime is 253951. The next prime is 253969. The reversal of 253963 is 369352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253963 - 2¹³ = 245771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7453 + ... + 7486.

It is an arithmetic number, because the mean of its divisors is an integer number (67230).

2²⁵³⁹⁶³ is an apocalyptic number.

253963 is a deficient number, since it is larger than the sum of its proper divisors (14957).

253963 is a wasteful number, since it uses less digits than its factorization.

253963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14956.

The product of its digits is 4860, while the sum is 28.

The square root of 253963 is about 503.9474178920. The cubic root of 253963 is about 63.3271800732.

The spelling of 253963 in words is "two hundred fifty-three thousand, nine hundred sixty-three".