20552224943 has 4 divisors (see below), whose sum is σ = 21107690520. Its totient is φ = 19996759368.

The previous prime is 20552224909. The next prime is 20552224951. The reversal of 20552224943 is 34942225502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34942225502 = 2 ⋅17471112751.

It is a cyclic number.

It is not a de Polignac number, because 20552224943 - 2²⁶ = 20485116079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20552224897 and 20552224906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552224993) 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, 277732733 + ... + 277732806.

It is an arithmetic number, because the mean of its divisors is an integer number (5276922630).

Almost surely, 2^20552224943 is an apocalyptic number.

20552224943 is a deficient number, since it is larger than the sum of its proper divisors (555465577).

20552224943 is an equidigital number, since it uses as much as digits as its factorization.

20552224943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555465576.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 20552224943 in words is "twenty billion, five hundred fifty-two million, two hundred twenty-four thousand, nine hundred forty-three".