20422825025 has 24 divisors (see below), whose sum is σ = 25474869504. Its totient is φ = 16241342400.

The previous prime is 20422825021. The next prime is 20422825081. The reversal of 20422825025 is 52052822402.

It is not a de Polignac number, because 20422825025 - 2² = 20422825021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20422824982 and 20422825000.

It is not an unprimeable number, because it can be changed into a prime (20422825021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4519067 + ... + 4523583.

It is an arithmetic number, because the mean of its divisors is an integer number (1061452896).

Almost surely, 2^20422825025 is an apocalyptic number.

20422825025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20422825025 is a deficient number, since it is larger than the sum of its proper divisors (5052044479).

20422825025 is a wasteful number, since it uses less digits than its factorization.

20422825025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561 (or 5556 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 20422825025 in words is "twenty billion, four hundred twenty-two million, eight hundred twenty-five thousand, twenty-five".