20440141025 has 12 divisors (see below), whose sum is σ = 25963965804. Its totient is φ = 15953280000.

The previous prime is 20440141003. The next prime is 20440141061. The reversal of 20440141025 is 52014104402.

It can be written as a sum of positive squares in 6 ways, for example, as 7957888849 + 12482252176 = 89207^2 + 111724^2 .

It is not a de Polignac number, because 20440141025 - 2¹² = 20440136929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9969776 + ... + 9971825.

It is an arithmetic number, because the mean of its divisors is an integer number (2163663817).

Almost surely, 2^20440141025 is an apocalyptic number.

20440141025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20440141025 is a deficient number, since it is larger than the sum of its proper divisors (5523824779).

20440141025 is a wasteful number, since it uses less digits than its factorization.

20440141025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19941652 (or 19941647 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 20440141025 its reverse (52014104402), we get a palindrome (72454245427).

The spelling of 20440141025 in words is "twenty billion, four hundred forty million, one hundred forty-one thousand, twenty-five".