20042422025 has 6 divisors (see below), whose sum is σ = 24852603342. Its totient is φ = 16033937600.

The previous prime is 20042422013. The next prime is 20042422027. The reversal of 20042422025 is 52022424002.

It can be written as a sum of positive squares in 3 ways, for example, as 73984 + 20042348041 = 272^2 + 141571^2 .

It is not a de Polignac number, because 20042422025 - 2¹⁰ = 20042421001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20042422027) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 400848416 + ... + 400848465.

It is an arithmetic number, because the mean of its divisors is an integer number (4142100557).

Almost surely, 2^20042422025 is an apocalyptic number.

20042422025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20042422025 is a deficient number, since it is larger than the sum of its proper divisors (4810181317).

20042422025 is an equidigital number, since it uses as much as digits as its factorization.

20042422025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801696891 (or 801696886 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 20042422025 its reverse (52022424002), we get a palindrome (72064846027).

The spelling of 20042422025 in words is "twenty billion, forty-two million, four hundred twenty-two thousand, twenty-five".