55235723 has 2 divisors, whose sum is σ = 55235724. Its totient is φ = 55235722.

The previous prime is 55235711. The next prime is 55235731. The reversal of 55235723 is 32753255.

55235723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55235723 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55235723.

It is not a weakly prime, because it can be changed into another prime (55235743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27617861 + 27617862.

It is an arithmetic number, because the mean of its divisors is an integer number (27617862).

Almost surely, 2^55235723 is an apocalyptic number.

55235723 is a deficient number, since it is larger than the sum of its proper divisors (1).

55235723 is an equidigital number, since it uses as much as digits as its factorization.

55235723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 32.

The square root of 55235723 is about 7432.0739366613. The cubic root of 55235723 is about 380.8377707567.

Adding to 55235723 its reverse (32753255), we get a palindrome (87988978).

The spelling of 55235723 in words is "fifty-five million, two hundred thirty-five thousand, seven hundred twenty-three".