55623230549 has 2 divisors, whose sum is σ = 55623230550. Its totient is φ = 55623230548.

The previous prime is 55623230513. The next prime is 55623230623. The reversal of 55623230549 is 94503232655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55510658449 + 112572100 = 235607^2 + 10610^2 .

It is a cyclic number.

It is not a de Polignac number, because 55623230549 - 2⁸ = 55623230293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55623230249) 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, 27811615274 + 27811615275.

It is an arithmetic number, because the mean of its divisors is an integer number (27811615275).

Almost surely, 2^55623230549 is an apocalyptic number.

It is an amenable number.

55623230549 is a deficient number, since it is larger than the sum of its proper divisors (1).

55623230549 is an equidigital number, since it uses as much as digits as its factorization.

55623230549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 55623230549 in words is "fifty-five billion, six hundred twenty-three million, two hundred thirty thousand, five hundred forty-nine".