50001425557 has 2 divisors, whose sum is σ = 50001425558. Its totient is φ = 50001425556.

The previous prime is 50001425543. The next prime is 50001425587. The reversal of 50001425557 is 75552410005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43199959716 + 6801465841 = 207846^2 + 82471^2 .

It is a cyclic number.

It is not a de Polignac number, because 50001425557 - 2³¹ = 47853941909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50001425527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000712778 + 25000712779.

It is an arithmetic number, because the mean of its divisors is an integer number (25000712779).

Almost surely, 2^50001425557 is an apocalyptic number.

It is an amenable number.

50001425557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50001425557 is an equidigital number, since it uses as much as digits as its factorization.

50001425557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35000, while the sum is 34.

The spelling of 50001425557 in words is "fifty billion, one million, four hundred twenty-five thousand, five hundred fifty-seven".