50811851 has 2 divisors, whose sum is σ = 50811852. Its totient is φ = 50811850.

The previous prime is 50811797. The next prime is 50811911. The reversal of 50811851 is 15811805.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50811851 - 2¹⁴ = 50795467 is a prime.

It is a Sophie Germain prime.

It is equal to p_3046916 and since 50811851 and 3046916 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (50811151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25405925 + 25405926.

It is an arithmetic number, because the mean of its divisors is an integer number (25405926).

Almost surely, 2^50811851 is an apocalyptic number.

50811851 is a deficient number, since it is larger than the sum of its proper divisors (1).

50811851 is an equidigital number, since it uses as much as digits as its factorization.

50811851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 50811851 is about 7128.2431916988. The cubic root of 50811851 is about 370.3863774851.

The spelling of 50811851 in words is "fifty million, eight hundred eleven thousand, eight hundred fifty-one".