20489104025 has 24 divisors (see below), whose sum is σ = 27690519360. Its totient is φ = 14948101440.

The previous prime is 20489104019. The next prime is 20489104049. The reversal of 20489104025 is 52040198402.

It is not a de Polignac number, because 20489104025 - 2⁸ = 20489103769 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 23 ways as a sum of consecutive naturals, for example, 352805 + ... + 406754.

It is an arithmetic number, because the mean of its divisors is an integer number (1153771640).

Almost surely, 2^20489104025 is an apocalyptic number.

20489104025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20489104025 is a deficient number, since it is larger than the sum of its proper divisors (7201415335).

20489104025 is a wasteful number, since it uses less digits than its factorization.

20489104025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759665 (or 759660 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 20489104025 in words is "twenty billion, four hundred eighty-nine million, one hundred four thousand, twenty-five".