55623230513 has 2 divisors, whose sum is σ = 55623230514. Its totient is φ = 55623230512.

The previous prime is 55623230501. The next prime is 55623230549. The reversal of 55623230513 is 31503232655.

55623230513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54656828944 + 966401569 = 233788^2 + 31087^2 .

It is a cyclic number.

It is not a de Polignac number, because 55623230513 - 2³⁰ = 54549488689 is a prime.

It is not a weakly prime, because it can be changed into another prime (55623230713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27811615256 + 27811615257.

It is an arithmetic number, because the mean of its divisors is an integer number (27811615257).

Almost surely, 2^55623230513 is an apocalyptic number.

It is an amenable number.

55623230513 is a deficient number, since it is larger than the sum of its proper divisors (1).

55623230513 is an equidigital number, since it uses as much as digits as its factorization.

55623230513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 55623230513 in words is "fifty-five billion, six hundred twenty-three million, two hundred thirty thousand, five hundred thirteen".