50640851 has 2 divisors, whose sum is σ = 50640852. Its totient is φ = 50640850.

The previous prime is 50640829. The next prime is 50640857. The reversal of 50640851 is 15804605.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50640851 - 2¹⁴ = 50624467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50640857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25320425 + 25320426.

It is an arithmetic number, because the mean of its divisors is an integer number (25320426).

Almost surely, 2^50640851 is an apocalyptic number.

50640851 is a deficient number, since it is larger than the sum of its proper divisors (1).

50640851 is an equidigital number, since it uses as much as digits as its factorization.

50640851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 50640851 is about 7116.2385429383. The cubic root of 50640851 is about 369.9704164319.

The spelling of 50640851 in words is "fifty million, six hundred forty thousand, eight hundred fifty-one".