245503 has 4 divisors (see below), whose sum is σ = 246528. Its totient is φ = 244480.

The previous prime is 245501. The next prime is 245513. The reversal of 245503 is 305542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 245503 - 2¹ = 245501 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245501) 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, 63 + ... + 703.

It is an arithmetic number, because the mean of its divisors is an integer number (61632).

2²⁴⁵⁵⁰³ is an apocalyptic number.

245503 is a deficient number, since it is larger than the sum of its proper divisors (1025).

245503 is an equidigital number, since it uses as much as digits as its factorization.

245503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 245503 is about 495.4825930343. The cubic root of 245503 is about 62.6160404206.

The spelling of 245503 in words is "two hundred forty-five thousand, five hundred three".