50362181 has 2 divisors, whose sum is σ = 50362182. Its totient is φ = 50362180.

The previous prime is 50362171. The next prime is 50362261. The reversal of 50362181 is 18126305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32376100 + 17986081 = 5690^2 + 4241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50362181 is a prime.

It is a super-2 number, since 2×50362181² = 5072698550153522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50362181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50362121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25181090 + 25181091.

It is an arithmetic number, because the mean of its divisors is an integer number (25181091).

Almost surely, 2^50362181 is an apocalyptic number.

It is an amenable number.

50362181 is a deficient number, since it is larger than the sum of its proper divisors (1).

50362181 is an equidigital number, since it uses as much as digits as its factorization.

50362181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 50362181 is about 7096.6316657975. The cubic root of 50362181 is about 369.2905348156.

Adding to 50362181 its reverse (18126305), we get a palindrome (68488486).

The spelling of 50362181 in words is "fifty million, three hundred sixty-two thousand, one hundred eighty-one".