55115743 has 2 divisors, whose sum is σ = 55115744. Its totient is φ = 55115742.

The previous prime is 55115729. The next prime is 55115773. The reversal of 55115743 is 34751155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55115743 - 2¹³ = 55107551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55115773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27557871 + 27557872.

It is an arithmetic number, because the mean of its divisors is an integer number (27557872).

Almost surely, 2^55115743 is an apocalyptic number.

55115743 is a deficient number, since it is larger than the sum of its proper divisors (1).

55115743 is an equidigital number, since it uses as much as digits as its factorization.

55115743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 31.

The square root of 55115743 is about 7423.9977774781. The cubic root of 55115743 is about 380.5618259084.

Adding to 55115743 its reverse (34751155), we get a palindrome (89866898).

The spelling of 55115743 in words is "fifty-five million, one hundred fifteen thousand, seven hundred forty-three".