42506550201 has 4 divisors (see below), whose sum is σ = 56675400272. Its totient is φ = 28337700132.

The previous prime is 42506550187. The next prime is 42506550227. The reversal of 42506550201 is 10205560524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42506550201 - 2¹³ = 42506542009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42506550301) 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, 7084425031 + ... + 7084425036.

It is an arithmetic number, because the mean of its divisors is an integer number (14168850068).

Almost surely, 2^42506550201 is an apocalyptic number.

It is an amenable number.

42506550201 is a deficient number, since it is larger than the sum of its proper divisors (14168850071).

42506550201 is a wasteful number, since it uses less digits than its factorization.

42506550201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14168850070.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 42506550201 in words is "forty-two billion, five hundred six million, five hundred fifty thousand, two hundred one".