55144706623 has 2 divisors, whose sum is σ = 55144706624. Its totient is φ = 55144706622.

The previous prime is 55144706599. The next prime is 55144706633. The reversal of 55144706623 is 32660744155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55144706623 - 2²¹ = 55142609471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55144706623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55144706633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27572353311 + 27572353312.

It is an arithmetic number, because the mean of its divisors is an integer number (27572353312).

Almost surely, 2^55144706623 is an apocalyptic number.

55144706623 is a deficient number, since it is larger than the sum of its proper divisors (1).

55144706623 is an equidigital number, since it uses as much as digits as its factorization.

55144706623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 55144706623 in words is "fifty-five billion, one hundred forty-four million, seven hundred six thousand, six hundred twenty-three".