55136620719839 has 2 divisors, whose sum is σ = 55136620719840. Its totient is φ = 55136620719838.

The previous prime is 55136620719821. The next prime is 55136620720039. The reversal of 55136620719839 is 93891702663155.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55136620719839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55136620710839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27568310359919 + 27568310359920.

It is an arithmetic number, because the mean of its divisors is an integer number (27568310359920).

Almost surely, 2^{55136620719839} is an apocalyptic number.

55136620719839 is a deficient number, since it is larger than the sum of its proper divisors (1).

55136620719839 is an equidigital number, since it uses as much as digits as its factorization.

55136620719839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73483200, while the sum is 65.

The spelling of 55136620719839 in words is "fifty-five trillion, one hundred thirty-six billion, six hundred twenty million, seven hundred nineteen thousand, eight hundred thirty-nine".