50626546381 has 2 divisors, whose sum is σ = 50626546382. Its totient is φ = 50626546380.

The previous prime is 50626546343. The next prime is 50626546433. The reversal of 50626546381 is 18364562605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41499801225 + 9126745156 = 203715^2 + 95534^2 .

It is a cyclic number.

It is not a de Polignac number, because 50626546381 - 2²⁵ = 50592991949 is a prime.

It is a super-2 number, since 2×50626546381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50626546081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25313273190 + 25313273191.

It is an arithmetic number, because the mean of its divisors is an integer number (25313273191).

Almost surely, 2^50626546381 is an apocalyptic number.

It is an amenable number.

50626546381 is a deficient number, since it is larger than the sum of its proper divisors (1).

50626546381 is an equidigital number, since it uses as much as digits as its factorization.

50626546381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 50626546381 in words is "fifty billion, six hundred twenty-six million, five hundred forty-six thousand, three hundred eighty-one".