50857151 has 2 divisors, whose sum is σ = 50857152. Its totient is φ = 50857150.

The previous prime is 50857139. The next prime is 50857153. The reversal of 50857151 is 15175805.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50857151 is a prime.

Together with 50857153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50857153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25428575 + 25428576.

It is an arithmetic number, because the mean of its divisors is an integer number (25428576).

Almost surely, 2^50857151 is an apocalyptic number.

50857151 is a deficient number, since it is larger than the sum of its proper divisors (1).

50857151 is an equidigital number, since it uses as much as digits as its factorization.

50857151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 32.

The square root of 50857151 is about 7131.4199848277. The cubic root of 50857151 is about 370.4964142770.

The spelling of 50857151 in words is "fifty million, eight hundred fifty-seven thousand, one hundred fifty-one".