50003508557 has 2 divisors, whose sum is σ = 50003508558. Its totient is φ = 50003508556.

The previous prime is 50003508551. The next prime is 50003508619. The reversal of 50003508557 is 75580530005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42137415076 + 7866093481 = 205274^2 + 88691^2 .

It is a cyclic number.

It is not a de Polignac number, because 50003508557 - 2⁸ = 50003508301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50003508557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50003508551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25001754278 + 25001754279.

It is an arithmetic number, because the mean of its divisors is an integer number (25001754279).

Almost surely, 2^50003508557 is an apocalyptic number.

It is an amenable number.

50003508557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50003508557 is an equidigital number, since it uses as much as digits as its factorization.

50003508557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 50003508557 in words is "fifty billion, three million, five hundred eight thousand, five hundred fifty-seven".