50315557 has 2 divisors, whose sum is σ = 50315558. Its totient is φ = 50315556.

The previous prime is 50315543. The next prime is 50315567. The reversal of 50315557 is 75551305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48427681 + 1887876 = 6959^2 + 1374^2 .

It is a cyclic number.

It is not a de Polignac number, because 50315557 - 2⁷ = 50315429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50315537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25157778 + 25157779.

It is an arithmetic number, because the mean of its divisors is an integer number (25157779).

Almost surely, 2^50315557 is an apocalyptic number.

It is an amenable number.

50315557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50315557 is an equidigital number, since it uses as much as digits as its factorization.

50315557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 50315557 is about 7093.3459664674. The cubic root of 50315557 is about 369.1765397664.

The spelling of 50315557 in words is "fifty million, three hundred fifteen thousand, five hundred fifty-seven".