20044335125 has 16 divisors (see below), whose sum is σ = 25087062000. Its totient is φ = 15989486400.

The previous prime is 20044335121. The next prime is 20044335149. The reversal of 20044335125 is 52153344002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 661569841 + 19382765284 = 25721^2 + 139222^2 .

It is not a de Polignac number, because 20044335125 - 2² = 20044335121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044335121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186110 + ... + 273359.

It is an arithmetic number, because the mean of its divisors is an integer number (1567941375).

Almost surely, 2^20044335125 is an apocalyptic number.

20044335125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20044335125 is a deficient number, since it is larger than the sum of its proper divisors (5042726875).

20044335125 is an equidigital number, since it uses as much as digits as its factorization.

20044335125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459833 (or 459823 counting only the distinct ones).

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

Adding to 20044335125 its reverse (52153344002), we get a palindrome (72197679127).

The spelling of 20044335125 in words is "twenty billion, forty-four million, three hundred thirty-five thousand, one hundred twenty-five".