50000557 has 2 divisors, whose sum is σ = 50000558. Its totient is φ = 50000556.

The previous prime is 50000539. The next prime is 50000563. The reversal of 50000557 is 75500005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 11634921 = 6194^2 + 3411^2 .

It is a cyclic number.

It is not a de Polignac number, because 50000557 - 2⁷ = 50000429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50000507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000278 + 25000279.

It is an arithmetic number, because the mean of its divisors is an integer number (25000279).

Almost surely, 2^50000557 is an apocalyptic number.

It is an amenable number.

50000557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50000557 is an equidigital number, since it uses as much as digits as its factorization.

50000557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 875, while the sum is 22.

The square root of 50000557 is about 7071.1071976035. The cubic root of 50000557 is about 368.4045178627.

The spelling of 50000557 in words is "fifty million, five hundred fifty-seven", and thus it is an aban number.