20204424442425 has 48 divisors (see below), whose sum is σ = 34482957949440. Its totient is φ = 10427866176000.

The previous prime is 20204424442399. The next prime is 20204424442439. The reversal of 20204424442425 is 52424442440202.

It is not a de Polignac number, because 20204424442425 - 2⁹ = 20204424441913 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209408695 + ... + 209505155.

It is an arithmetic number, because the mean of its divisors is an integer number (718394957280).

Almost surely, 2^{20204424442425} is an apocalyptic number.

20204424442425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20204424442425 is a deficient number, since it is larger than the sum of its proper divisors (14278533507015).

20204424442425 is a wasteful number, since it uses less digits than its factorization.

20204424442425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186594 (or 186589 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 39.

Adding to 20204424442425 its reverse (52424442440202), we get a palindrome (72628866882627).

The spelling of 20204424442425 in words is "twenty trillion, two hundred four billion, four hundred twenty-four million, four hundred forty-two thousand, four hundred twenty-five".