42650550251 has 4 divisors (see below), whose sum is σ = 42871537752. Its totient is φ = 42429562752.

The previous prime is 42650550221. The next prime is 42650550253. The reversal of 42650550251 is 15205505624.

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 42650550251 - 2¹⁴ = 42650533867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42650550253) 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, 110493461 + ... + 110493846.

It is an arithmetic number, because the mean of its divisors is an integer number (10717884438).

Almost surely, 2^42650550251 is an apocalyptic number.

42650550251 is a deficient number, since it is larger than the sum of its proper divisors (220987501).

42650550251 is a wasteful number, since it uses less digits than its factorization.

42650550251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220987500.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 42650550251 in words is "forty-two billion, six hundred fifty million, five hundred fifty thousand, two hundred fifty-one".