20880250001 has 8 divisors (see below), whose sum is σ = 22516138344. Its totient is φ = 19248606720.

The previous prime is 20880249977. The next prime is 20880250007. The reversal of 20880250001 is 10005208802.

It is a Cunningham number, because it is equal to 144500²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 20880250000 = 1^2 + 144500^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20880250001 - 2²⁶ = 20813141137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20880250007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051040 + ... + 1070721.

It is an arithmetic number, because the mean of its divisors is an integer number (2814517293).

Almost surely, 2^20880250001 is an apocalyptic number.

It is an amenable number.

20880250001 is a deficient number, since it is larger than the sum of its proper divisors (1635888343).

20880250001 is a wasteful number, since it uses less digits than its factorization.

20880250001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122531.

The product of its (nonzero) digits is 1280, while the sum is 26.

Adding to 20880250001 its reverse (10005208802), we get a palindrome (30885458803).

The spelling of 20880250001 in words is "twenty billion, eight hundred eighty million, two hundred fifty thousand, one".