50018851 has 2 divisors, whose sum is σ = 50018852. Its totient is φ = 50018850.

The previous prime is 50018833. The next prime is 50018873. The reversal of 50018851 is 15881005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50018851 - 2⁵ = 50018819 is a prime.

It is not a weakly prime, because it can be changed into another prime (50018821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25009425 + 25009426.

It is an arithmetic number, because the mean of its divisors is an integer number (25009426).

Almost surely, 2^50018851 is an apocalyptic number.

50018851 is a deficient number, since it is larger than the sum of its proper divisors (1).

50018851 is an equidigital number, since it uses as much as digits as its factorization.

50018851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 50018851 is about 7072.4006532436. The cubic root of 50018851 is about 368.4494424986.

Adding to 50018851 its reverse (15881005), we get a palindrome (65899856).

The spelling of 50018851 in words is "fifty million, eighteen thousand, eight hundred fifty-one".