55566275623 has 2 divisors, whose sum is σ = 55566275624. Its totient is φ = 55566275622.

The previous prime is 55566275539. The next prime is 55566275627. The reversal of 55566275623 is 32657266555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55566275623 - 2⁹ = 55566275111 is a prime.

It is a super-2 number, since 2×55566275623² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55566275627) 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, 27783137811 + 27783137812.

It is an arithmetic number, because the mean of its divisors is an integer number (27783137812).

Almost surely, 2^55566275623 is an apocalyptic number.

55566275623 is a deficient number, since it is larger than the sum of its proper divisors (1).

55566275623 is an equidigital number, since it uses as much as digits as its factorization.

55566275623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340000, while the sum is 52.

The spelling of 55566275623 in words is "fifty-five billion, five hundred sixty-six million, two hundred seventy-five thousand, six hundred twenty-three".