50554181 has 2 divisors, whose sum is σ = 50554182. Its totient is φ = 50554180.

The previous prime is 50554171. The next prime is 50554199. The reversal of 50554181 is 18145505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34281025 + 16273156 = 5855^2 + 4034^2 .

It is a cyclic number.

It is not a de Polignac number, because 50554181 - 2¹⁴ = 50537797 is a prime.

It is a super-2 number, since 2×50554181² = 5111450433161522, 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 (50554121) 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, 25277090 + 25277091.

It is an arithmetic number, because the mean of its divisors is an integer number (25277091).

Almost surely, 2^50554181 is an apocalyptic number.

It is an amenable number.

50554181 is a deficient number, since it is larger than the sum of its proper divisors (1).

50554181 is an equidigital number, since it uses as much as digits as its factorization.

50554181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 50554181 is about 7110.1463416726. The cubic root of 50554181 is about 369.7592322090.

Adding to 50554181 its reverse (18145505), we get a palindrome (68699686).

The spelling of 50554181 in words is "fifty million, five hundred fifty-four thousand, one hundred eighty-one".