50155061009 has 2 divisors, whose sum is σ = 50155061010. Its totient is φ = 50155061008.

The previous prime is 50155060987. The next prime is 50155061041. The reversal of 50155061009 is 90016055105.

It is an a-pointer prime, because the next prime (50155061041) can be obtained adding 50155061009 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41412250000 + 8742811009 = 203500^2 + 93503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50155061009 is a prime.

It is not a weakly prime, because it can be changed into another prime (50155061059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25077530504 + 25077530505.

It is an arithmetic number, because the mean of its divisors is an integer number (25077530505).

Almost surely, 2^50155061009 is an apocalyptic number.

It is an amenable number.

50155061009 is a deficient number, since it is larger than the sum of its proper divisors (1).

50155061009 is an equidigital number, since it uses as much as digits as its factorization.

50155061009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 50155061009 in words is "fifty billion, one hundred fifty-five million, sixty-one thousand, nine".