55276644139 has 2 divisors, whose sum is σ = 55276644140. Its totient is φ = 55276644138.

The previous prime is 55276644131. The next prime is 55276644169. The reversal of 55276644139 is 93144667255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55276644139 - 2³ = 55276644131 is a prime.

It is not a weakly prime, because it can be changed into another prime (55276644131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27638322069 + 27638322070.

It is an arithmetic number, because the mean of its divisors is an integer number (27638322070).

Almost surely, 2^55276644139 is an apocalyptic number.

55276644139 is a deficient number, since it is larger than the sum of its proper divisors (1).

55276644139 is an equidigital number, since it uses as much as digits as its factorization.

55276644139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 52.

The spelling of 55276644139 in words is "fifty-five billion, two hundred seventy-six million, six hundred forty-four thousand, one hundred thirty-nine".