55100056139 has 2 divisors, whose sum is σ = 55100056140. Its totient is φ = 55100056138.

The previous prime is 55100056127. The next prime is 55100056147. The reversal of 55100056139 is 93165000155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55100056139 - 2³² = 50805088843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55100056099 and 55100056108.

It is not a weakly prime, because it can be changed into another prime (55100056189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550028069 + 27550028070.

It is an arithmetic number, because the mean of its divisors is an integer number (27550028070).

Almost surely, 2^55100056139 is an apocalyptic number.

55100056139 is a deficient number, since it is larger than the sum of its proper divisors (1).

55100056139 is an equidigital number, since it uses as much as digits as its factorization.

55100056139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20250, while the sum is 35.

The spelling of 55100056139 in words is "fifty-five billion, one hundred million, fifty-six thousand, one hundred thirty-nine".