55639700793641 has 2 divisors, whose sum is σ = 55639700793642. Its totient is φ = 55639700793640.

The previous prime is 55639700793587. The next prime is 55639700793661. The reversal of 55639700793641 is 14639700793655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55408729239616 + 230971554025 = 7443704^2 + 480595^2 .

It is a cyclic number.

It is not a de Polignac number, because 55639700793641 - 2³⁴ = 55622520924457 is a prime.

It is not a weakly prime, because it can be changed into another prime (55639700793661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27819850396820 + 27819850396821.

It is an arithmetic number, because the mean of its divisors is an integer number (27819850396821).

Almost surely, 2^{55639700793641} is an apocalyptic number.

It is an amenable number.

55639700793641 is a deficient number, since it is larger than the sum of its proper divisors (1).

55639700793641 is an equidigital number, since it uses as much as digits as its factorization.

55639700793641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128595600, while the sum is 65.

The spelling of 55639700793641 in words is "fifty-five trillion, six hundred thirty-nine billion, seven hundred million, seven hundred ninety-three thousand, six hundred forty-one".