55181411 has 2 divisors, whose sum is σ = 55181412. Its totient is φ = 55181410.

The previous prime is 55181407. The next prime is 55181417. The reversal of 55181411 is 11418155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55181411 - 2² = 55181407 is a prime.

It is not a weakly prime, because it can be changed into another prime (55181417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27590705 + 27590706.

It is an arithmetic number, because the mean of its divisors is an integer number (27590706).

Almost surely, 2^55181411 is an apocalyptic number.

55181411 is a deficient number, since it is larger than the sum of its proper divisors (1).

55181411 is an equidigital number, since it uses as much as digits as its factorization.

55181411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800, while the sum is 26.

The square root of 55181411 is about 7428.4191454171. The cubic root of 55181411 is about 380.7129068523.

Adding to 55181411 its reverse (11418155), we get a palindrome (66599566).

The spelling of 55181411 in words is "fifty-five million, one hundred eighty-one thousand, four hundred eleven".