50630561257 has 2 divisors, whose sum is σ = 50630561258. Its totient is φ = 50630561256.

The previous prime is 50630561251. The next prime is 50630561323. The reversal of 50630561257 is 75216503605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42541537536 + 8089023721 = 206256^2 + 89939^2 .

It is a cyclic number.

It is not a de Polignac number, because 50630561257 - 2³ = 50630561249 is a prime.

It is not a weakly prime, because it can be changed into another prime (50630561251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25315280628 + 25315280629.

It is an arithmetic number, because the mean of its divisors is an integer number (25315280629).

Almost surely, 2^50630561257 is an apocalyptic number.

It is an amenable number.

50630561257 is a deficient number, since it is larger than the sum of its proper divisors (1).

50630561257 is an equidigital number, since it uses as much as digits as its factorization.

50630561257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 50630561257 in words is "fifty billion, six hundred thirty million, five hundred sixty-one thousand, two hundred fifty-seven".