55243703 has 2 divisors, whose sum is σ = 55243704. Its totient is φ = 55243702.

The previous prime is 55243681. The next prime is 55243709. The reversal of 55243703 is 30734255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55243703 - 2¹⁰ = 55242679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55243709) 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, 27621851 + 27621852.

It is an arithmetic number, because the mean of its divisors is an integer number (27621852).

Almost surely, 2^55243703 is an apocalyptic number.

55243703 is a deficient number, since it is larger than the sum of its proper divisors (1).

55243703 is an equidigital number, since it uses as much as digits as its factorization.

55243703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 55243703 is about 7432.6107795310. The cubic root of 55243703 is about 380.8561099697.

Adding to 55243703 its reverse (30734255), we get a palindrome (85977958).

The spelling of 55243703 in words is "fifty-five million, two hundred forty-three thousand, seven hundred three".