55634431446019 has 2 divisors, whose sum is σ = 55634431446020. Its totient is φ = 55634431446018.

The previous prime is 55634431445977. The next prime is 55634431446091. The reversal of 55634431446019 is 91064413443655.

Together with next prime (55634431446091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55634431446019 - 2⁷ = 55634431445891 is a prime.

It is a super-2 number, since 2×55634431446019² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55634431446119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27817215723009 + 27817215723010.

It is an arithmetic number, because the mean of its divisors is an integer number (27817215723010).

Almost surely, 2^{55634431446019} is an apocalyptic number.

55634431446019 is a deficient number, since it is larger than the sum of its proper divisors (1).

55634431446019 is an equidigital number, since it uses as much as digits as its factorization.

55634431446019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 55.

The spelling of 55634431446019 in words is "fifty-five trillion, six hundred thirty-four billion, four hundred thirty-one million, four hundred forty-six thousand, nineteen".