50153471989 has 2 divisors, whose sum is σ = 50153471990. Its totient is φ = 50153471988.

The previous prime is 50153471981. The next prime is 50153472079. The reversal of 50153471989 is 98917435105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48845420100 + 1308051889 = 221010^2 + 36167^2 .

It is a cyclic number.

It is not a de Polignac number, because 50153471989 - 2³ = 50153471981 is a prime.

It is a super-2 number, since 2×50153471989² (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 (50153471981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25076735994 + 25076735995.

It is an arithmetic number, because the mean of its divisors is an integer number (25076735995).

Almost surely, 2^50153471989 is an apocalyptic number.

It is an amenable number.

50153471989 is a deficient number, since it is larger than the sum of its proper divisors (1).

50153471989 is an equidigital number, since it uses as much as digits as its factorization.

50153471989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 50153471989 in words is "fifty billion, one hundred fifty-three million, four hundred seventy-one thousand, nine hundred eighty-nine".