55040906410639 has 2 divisors, whose sum is σ = 55040906410640. Its totient is φ = 55040906410638.

The previous prime is 55040906410621. The next prime is 55040906410703. The reversal of 55040906410639 is 93601460904055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55040906410639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55040906410619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27520453205319 + 27520453205320.

It is an arithmetic number, because the mean of its divisors is an integer number (27520453205320).

Almost surely, 2^{55040906410639} is an apocalyptic number.

55040906410639 is a deficient number, since it is larger than the sum of its proper divisors (1).

55040906410639 is an equidigital number, since it uses as much as digits as its factorization.

55040906410639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 55040906410639 in words is "fifty-five trillion, forty billion, nine hundred six million, four hundred ten thousand, six hundred thirty-nine".