20054000002 has 4 divisors (see below), whose sum is σ = 30081000006. Its totient is φ = 10027000000.

The previous prime is 20053999981. The next prime is 20054000009. The reversal of 20054000002 is 20000045002.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 13103609841 + 6950390161 = 114471^2 + 83369^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20054000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013499999 + ... + 5013500002.

Almost surely, 2^20054000002 is an apocalyptic number.

20054000002 is a deficient number, since it is larger than the sum of its proper divisors (10027000004).

20054000002 is a wasteful number, since it uses less digits than its factorization.

20054000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10027000003.

The product of its (nonzero) digits is 80, while the sum is 13.

Adding to 20054000002 its reverse (20000045002), we get a palindrome (40054045004).

The spelling of 20054000002 in words is "twenty billion, fifty-four million, two", and thus it is an aban number.