20550254103 has 18 divisors (see below), whose sum is σ = 30328735424. Its totient is φ = 13408663464.

The previous prime is 20550254093. The next prime is 20550254117. The reversal of 20550254103 is 30145205502.

It is a happy number.

20550254103 is a `hidden beast` number, since 2 + 0 + 5 + 502 + 54 + 103 = 666.

It is not a de Polignac number, because 20550254103 - 2¹⁶ = 20550188567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20550254173) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 496951 + ... + 536712.

Almost surely, 2^20550254103 is an apocalyptic number.

20550254103 is a deficient number, since it is larger than the sum of its proper divisors (9778481321).

20550254103 is a wasteful number, since it uses less digits than its factorization.

20550254103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033763 (or 1033713 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 20550254103 its reverse (30145205502), we get a palindrome (50695459605).

The spelling of 20550254103 in words is "twenty billion, five hundred fifty million, two hundred fifty-four thousand, one hundred three".