253463 has 4 divisors (see below), whose sum is σ = 289680. Its totient is φ = 217248.

The previous prime is 253447. The next prime is 253469. The reversal of 253463 is 364352.

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 253463 - 2⁴ = 253447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253469) 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, 18098 + ... + 18111.

It is an arithmetic number, because the mean of its divisors is an integer number (72420).

2²⁵³⁴⁶³ is an apocalyptic number.

253463 is a deficient number, since it is larger than the sum of its proper divisors (36217).

253463 is an equidigital number, since it uses as much as digits as its factorization.

253463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36216.

The product of its digits is 2160, while the sum is 23.

The square root of 253463 is about 503.4510899780. The cubic root of 253463 is about 63.2855934477.

Subtracting 253463 from its reverse (364352), we obtain a square (110889 = 333²).

The spelling of 253463 in words is "two hundred fifty-three thousand, four hundred sixty-three".