50551425257 has 2 divisors, whose sum is σ = 50551425258. Its totient is φ = 50551425256.

The previous prime is 50551425241. The next prime is 50551425259. The reversal of 50551425257 is 75252415505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49291104256 + 1260321001 = 222016^2 + 35501^2 .

It is a cyclic number.

It is not a de Polignac number, because 50551425257 - 2⁴ = 50551425241 is a prime.

Together with 50551425259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50551425259) 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, 25275712628 + 25275712629.

It is an arithmetic number, because the mean of its divisors is an integer number (25275712629).

Almost surely, 2^50551425257 is an apocalyptic number.

It is an amenable number.

50551425257 is a deficient number, since it is larger than the sum of its proper divisors (1).

50551425257 is an equidigital number, since it uses as much as digits as its factorization.

50551425257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 350000, while the sum is 41.

The spelling of 50551425257 in words is "fifty billion, five hundred fifty-one million, four hundred twenty-five thousand, two hundred fifty-seven".