42550144211 has 4 divisors (see below), whose sum is σ = 42551834424. Its totient is φ = 42548454000.

The previous prime is 42550144201. The next prime is 42550144213. The reversal of 42550144211 is 11244105524.

It is a happy number.

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 42550144211 - 2¹⁰ = 42550143187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42550144213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806765 + ... + 857886.

It is an arithmetic number, because the mean of its divisors is an integer number (10637958606).

Almost surely, 2^42550144211 is an apocalyptic number.

42550144211 is a deficient number, since it is larger than the sum of its proper divisors (1690213).

42550144211 is a wasteful number, since it uses less digits than its factorization.

42550144211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690212.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 42550144211 its reverse (11244105524), we get a palindrome (53794249735).

The spelling of 42550144211 in words is "forty-two billion, five hundred fifty million, one hundred forty-four thousand, two hundred eleven".