20224810825 has 6 divisors (see below), whose sum is σ = 25078765454. Its totient is φ = 16179848640.

The previous prime is 20224810811. The next prime is 20224810867. The reversal of 20224810825 is 52801842202.

It can be written as a sum of positive squares in 3 ways, for example, as 2264522569 + 17960288256 = 47587^2 + 134016^2 .

It is not a de Polignac number, because 20224810825 - 2¹¹ = 20224808777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404496192 + ... + 404496241.

Almost surely, 2^20224810825 is an apocalyptic number.

20224810825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20224810825 is a deficient number, since it is larger than the sum of its proper divisors (4853954629).

20224810825 is an equidigital number, since it uses as much as digits as its factorization.

20224810825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808992443 (or 808992438 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The spelling of 20224810825 in words is "twenty billion, two hundred twenty-four million, eight hundred ten thousand, eight hundred twenty-five".