55311541 has 2 divisors, whose sum is σ = 55311542. Its totient is φ = 55311540.

The previous prime is 55311517. The next prime is 55311547. The reversal of 55311541 is 14511355.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40373316 + 14938225 = 6354^2 + 3865^2 .

It is a cyclic number.

It is not a de Polignac number, because 55311541 - 2¹⁷ = 55180469 is a prime.

It is a super-3 number, since 3×55311541³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55311547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27655770 + 27655771.

It is an arithmetic number, because the mean of its divisors is an integer number (27655771).

Almost surely, 2^55311541 is an apocalyptic number.

It is an amenable number.

55311541 is a deficient number, since it is larger than the sum of its proper divisors (1).

55311541 is an equidigital number, since it uses as much as digits as its factorization.

55311541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1500, while the sum is 25.

The square root of 55311541 is about 7437.1729171776. The cubic root of 55311541 is about 381.0119403904.

Adding to 55311541 its reverse (14511355), we get a palindrome (69822896).

The spelling of 55311541 in words is "fifty-five million, three hundred eleven thousand, five hundred forty-one".