55724506771123 has 2 divisors, whose sum is σ = 55724506771124. Its totient is φ = 55724506771122.

The previous prime is 55724506771099. The next prime is 55724506771237. The reversal of 55724506771123 is 32117760542755.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55724506771123 is a prime.

It is a super-2 number, since 2×55724506771123² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55724506771723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27862253385561 + 27862253385562.

It is an arithmetic number, because the mean of its divisors is an integer number (27862253385562).

Almost surely, 2^{55724506771123} is an apocalyptic number.

55724506771123 is a deficient number, since it is larger than the sum of its proper divisors (1).

55724506771123 is an equidigital number, since it uses as much as digits as its factorization.

55724506771123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12348000, while the sum is 55.

The spelling of 55724506771123 in words is "fifty-five trillion, seven hundred twenty-four billion, five hundred six million, seven hundred seventy-one thousand, one hundred twenty-three".