245203563 has 16 divisors (see below), whose sum is σ = 377640576. Its totient is φ = 139866240.

The previous prime is 245203547. The next prime is 245203577. The reversal of 245203563 is 365302542.

It is not a de Polignac number, because 245203563 - 2⁴ = 245203547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245203563.

It is not an unprimeable number, because it can be changed into a prime (245203513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217981 + ... + 219102.

It is an arithmetic number, because the mean of its divisors is an integer number (23602536).

Almost surely, 2^245203563 is an apocalyptic number.

245203563 is a deficient number, since it is larger than the sum of its proper divisors (132437013).

245203563 is a wasteful number, since it uses less digits than its factorization.

245203563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437114.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 245203563 is about 15658.9770738704. The cubic root of 245203563 is about 625.9057272457.

The spelling of 245203563 in words is "two hundred forty-five million, two hundred three thousand, five hundred sixty-three".