20552224143 has 16 divisors (see below), whose sum is σ = 30589358976. Its totient is φ = 12166220640.

The previous prime is 20552224123. The next prime is 20552224153. The reversal of 20552224143 is 34142225502.

It is not a de Polignac number, because 20552224143 - 2¹³ = 20552215951 is a prime.

It is a super-2 number, since 2×20552224143² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20552224143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552224123) 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, 7240380 + ... + 7243217.

It is an arithmetic number, because the mean of its divisors is an integer number (1911834936).

Almost surely, 2^20552224143 is an apocalyptic number.

20552224143 is a deficient number, since it is larger than the sum of its proper divisors (10037134833).

20552224143 is a wasteful number, since it uses less digits than its factorization.

20552224143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14483654.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20552224143 its reverse (34142225502), we get a palindrome (54694449645).

The spelling of 20552224143 in words is "twenty billion, five hundred fifty-two million, two hundred twenty-four thousand, one hundred forty-three".