50125181 has 2 divisors, whose sum is σ = 50125182. Its totient is φ = 50125180.

The previous prime is 50125169. The next prime is 50125213. The reversal of 50125181 is 18152105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49477156 + 648025 = 7034^2 + 805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50125181 is a prime.

It is a super-2 number, since 2×50125181² = 5025067540565522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50125081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25062590 + 25062591.

It is an arithmetic number, because the mean of its divisors is an integer number (25062591).

Almost surely, 2^50125181 is an apocalyptic number.

It is an amenable number.

50125181 is a deficient number, since it is larger than the sum of its proper divisors (1).

50125181 is an equidigital number, since it uses as much as digits as its factorization.

50125181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 50125181 is about 7079.9139119060. The cubic root of 50125181 is about 368.7103408080.

Adding to 50125181 its reverse (18152105), we get a palindrome (68277286).

The spelling of 50125181 in words is "fifty million, one hundred twenty-five thousand, one hundred eighty-one".