55336819639 has 2 divisors, whose sum is σ = 55336819640. Its totient is φ = 55336819638.

The previous prime is 55336819631. The next prime is 55336819711. The reversal of 55336819639 is 93691863355.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55336819639 - 2³ = 55336819631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55336819631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27668409819 + 27668409820.

It is an arithmetic number, because the mean of its divisors is an integer number (27668409820).

Almost surely, 2^55336819639 is an apocalyptic number.

55336819639 is a deficient number, since it is larger than the sum of its proper divisors (1).

55336819639 is an equidigital number, since it uses as much as digits as its factorization.

55336819639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15746400, while the sum is 58.

The spelling of 55336819639 in words is "fifty-five billion, three hundred thirty-six million, eight hundred nineteen thousand, six hundred thirty-nine".