20250648611 has 4 divisors (see below), whose sum is σ = 20379633792. Its totient is φ = 20121663432.

The previous prime is 20250648601. The next prime is 20250648653. The reversal of 20250648611 is 11684605202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11684605202 = 2 ⋅5842302601.

It is a cyclic number.

It is not a de Polignac number, because 20250648611 - 2¹⁸ = 20250386467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20250648601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64492355 + ... + 64492668.

It is an arithmetic number, because the mean of its divisors is an integer number (5094908448).

Almost surely, 2^20250648611 is an apocalyptic number.

20250648611 is a deficient number, since it is larger than the sum of its proper divisors (128985181).

20250648611 is a wasteful number, since it uses less digits than its factorization.

20250648611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128985180.

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

The spelling of 20250648611 in words is "twenty billion, two hundred fifty million, six hundred forty-eight thousand, six hundred eleven".