20025436025 has 24 divisors (see below), whose sum is σ = 30048255360. Its totient is φ = 12923976960.

The previous prime is 20025436009. The next prime is 20025436063. The reversal of 20025436025 is 52063452002.

It is not a de Polignac number, because 20025436025 - 2⁴ = 20025436009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3362645 + ... + 3368594.

It is an arithmetic number, because the mean of its divisors is an integer number (1252010640).

Almost surely, 2^20025436025 is an apocalyptic number.

20025436025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20025436025 is a deficient number, since it is larger than the sum of its proper divisors (10022819335).

20025436025 is a wasteful number, since it uses less digits than its factorization.

20025436025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731273 (or 6731268 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20025436025 its reverse (52063452002), we get a palindrome (72088888027).

The spelling of 20025436025 in words is "twenty billion, twenty-five million, four hundred thirty-six thousand, twenty-five".