20110424225 has 12 divisors (see below), whose sum is σ = 24958589676. Its totient is φ = 16074362880.

The previous prime is 20110424209. The next prime is 20110424309. The reversal of 20110424225 is 52242401102.

It can be written as a sum of positive squares in 6 ways, for example, as 91853056 + 20018571169 = 9584^2 + 141487^2 .

It is not a de Polignac number, because 20110424225 - 2⁴ = 20110424209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20110424225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320012 + ... + 377661.

It is an arithmetic number, because the mean of its divisors is an integer number (2079882473).

Almost surely, 2^20110424225 is an apocalyptic number.

20110424225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20110424225 is a deficient number, since it is larger than the sum of its proper divisors (4848165451).

20110424225 is a wasteful number, since it uses less digits than its factorization.

20110424225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698836 (or 698831 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 20110424225 its reverse (52242401102), we get a palindrome (72352825327).

The spelling of 20110424225 in words is "twenty billion, one hundred ten million, four hundred twenty-four thousand, two hundred twenty-five".