55637546421439 has 2 divisors, whose sum is σ = 55637546421440. Its totient is φ = 55637546421438.

The previous prime is 55637546421383. The next prime is 55637546421469. The reversal of 55637546421439 is 93412464573655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55637546421439 - 2⁹ = 55637546420927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55637546421469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27818773210719 + 27818773210720.

It is an arithmetic number, because the mean of its divisors is an integer number (27818773210720).

Almost surely, 2^{55637546421439} is an apocalyptic number.

55637546421439 is a deficient number, since it is larger than the sum of its proper divisors (1).

55637546421439 is an equidigital number, since it uses as much as digits as its factorization.

55637546421439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592000, while the sum is 64.

The spelling of 55637546421439 in words is "fifty-five trillion, six hundred thirty-seven billion, five hundred forty-six million, four hundred twenty-one thousand, four hundred thirty-nine".