61055506123 has 2 divisors, whose sum is σ = 61055506124. Its totient is φ = 61055506122.

The previous prime is 61055506073. The next prime is 61055506151. The reversal of 61055506123 is 32160555016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61055506123 - 2⁹ = 61055505611 is a prime.

It is a super-2 number, since 2×61055506123² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61055506423) 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, 30527753061 + 30527753062.

It is an arithmetic number, because the mean of its divisors is an integer number (30527753062).

Almost surely, 2^61055506123 is an apocalyptic number.

61055506123 is a deficient number, since it is larger than the sum of its proper divisors (1).

61055506123 is an equidigital number, since it uses as much as digits as its factorization.

61055506123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 61055506123 in words is "sixty-one billion, fifty-five million, five hundred six thousand, one hundred twenty-three".