20054543422 has 4 divisors (see below), whose sum is σ = 30081815136. Its totient is φ = 10027271710.

The previous prime is 20054543417. The next prime is 20054543423. The reversal of 20054543422 is 22434545002.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054543423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013635854 + ... + 5013635857.

It is an arithmetic number, because the mean of its divisors is an integer number (7520453784).

Almost surely, 2^20054543422 is an apocalyptic number.

20054543422 is a deficient number, since it is larger than the sum of its proper divisors (10027271714).

20054543422 is a wasteful number, since it uses less digits than its factorization.

20054543422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10027271713.

The product of its (nonzero) digits is 38400, while the sum is 31.

The spelling of 20054543422 in words is "twenty billion, fifty-four million, five hundred forty-three thousand, four hundred twenty-two".