245420503 has 4 divisors (see below), whose sum is σ = 245987728. Its totient is φ = 244853280.

The previous prime is 245420467. The next prime is 245420561. The reversal of 245420503 is 305024542.

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 245420503 - 2²¹ = 243323351 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 (245420563) 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, 282963 + ... + 283828.

It is an arithmetic number, because the mean of its divisors is an integer number (61496932).

Almost surely, 2^245420503 is an apocalyptic number.

245420503 is a deficient number, since it is larger than the sum of its proper divisors (567225).

245420503 is an equidigital number, since it uses as much as digits as its factorization.

245420503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567224.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 245420503 is about 15665.9025593804. The cubic root of 245420503 is about 626.0902595886.

The spelling of 245420503 in words is "two hundred forty-five million, four hundred twenty thousand, five hundred three".