20422025025 has 24 divisors (see below), whose sum is σ = 33966617664. Its totient is φ = 10826520000.

The previous prime is 20422025023. The next prime is 20422025053. The reversal of 20422025025 is 52052022402.

It is a happy number.

It is not a de Polignac number, because 20422025025 - 2¹ = 20422025023 is a prime.

It is a super-2 number, since 2×20422025025² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20422024986 and 20422025004.

It is not an unprimeable number, because it can be changed into a prime (20422025021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802726 + ... + 827775.

It is an arithmetic number, because the mean of its divisors is an integer number (1415275736).

Almost surely, 2^20422025025 is an apocalyptic number.

20422025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20422025025 is a deficient number, since it is larger than the sum of its proper divisors (13544592639).

20422025025 is a wasteful number, since it uses less digits than its factorization.

20422025025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630681 (or 1630676 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

Adding to 20422025025 its reverse (52052022402), we get a palindrome (72474047427).

The spelling of 20422025025 in words is "twenty billion, four hundred twenty-two million, twenty-five thousand, twenty-five".