50518157 has 2 divisors, whose sum is σ = 50518158. Its totient is φ = 50518156.

The previous prime is 50518129. The next prime is 50518159. The reversal of 50518157 is 75181505.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48706441 + 1811716 = 6979^2 + 1346^2 .

It is a cyclic number.

It is not a de Polignac number, because 50518157 - 2¹⁶ = 50452621 is a prime.

Together with 50518159, 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 (50518159) 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, 25259078 + 25259079.

It is an arithmetic number, because the mean of its divisors is an integer number (25259079).

Almost surely, 2^50518157 is an apocalyptic number.

It is an amenable number.

50518157 is a deficient number, since it is larger than the sum of its proper divisors (1).

50518157 is an equidigital number, since it uses as much as digits as its factorization.

50518157 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 50518157 is about 7107.6126090270. The cubic root of 50518157 is about 369.6713834133.

The spelling of 50518157 in words is "fifty million, five hundred eighteen thousand, one hundred fifty-seven".