550402102111 has 4 divisors (see below), whose sum is σ = 550681071192. Its totient is φ = 550123133032.

The previous prime is 550402102073. The next prime is 550402102121. The reversal of 550402102111 is 111201204055.

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

It is a cyclic number.

It is not a de Polignac number, because 550402102111 - 2¹¹ = 550402100063 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 (550402102121) 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, 139481581 + ... + 139485526.

It is an arithmetic number, because the mean of its divisors is an integer number (137670267798).

Almost surely, 2^550402102111 is an apocalyptic number.

550402102111 is a deficient number, since it is larger than the sum of its proper divisors (278969081).

550402102111 is a wasteful number, since it uses less digits than its factorization.

550402102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278969080.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 550402102111 its reverse (111201204055), we get a palindrome (661603306166).

The spelling of 550402102111 in words is "five hundred fifty billion, four hundred two million, one hundred two thousand, one hundred eleven".