20450250104 has 16 divisors (see below), whose sum is σ = 38358068400. Its totient is φ = 10221431872.

The previous prime is 20450250101. The next prime is 20450250151. The reversal of 20450250104 is 40105205402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20450250104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450250101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438044 + ... + 482475.

It is an arithmetic number, because the mean of its divisors is an integer number (2397379275).

Almost surely, 2^20450250104 is an apocalyptic number.

It is an amenable number.

20450250104 is a deficient number, since it is larger than the sum of its proper divisors (17907818296).

20450250104 is a wasteful number, since it uses less digits than its factorization.

20450250104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923302 (or 923298 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20450250104 its reverse (40105205402), we get a palindrome (60555455506).

The spelling of 20450250104 in words is "twenty billion, four hundred fifty million, two hundred fifty thousand, one hundred four".