55106115563 has 2 divisors, whose sum is σ = 55106115564. Its totient is φ = 55106115562.

The previous prime is 55106115517. The next prime is 55106115683. The reversal of 55106115563 is 36551160155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55106115563 - 2¹⁸ = 55105853419 is a prime.

It is not a weakly prime, because it can be changed into another prime (55106115263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27553057781 + 27553057782.

It is an arithmetic number, because the mean of its divisors is an integer number (27553057782).

Almost surely, 2^55106115563 is an apocalyptic number.

55106115563 is a deficient number, since it is larger than the sum of its proper divisors (1).

55106115563 is an equidigital number, since it uses as much as digits as its factorization.

55106115563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 38.

The spelling of 55106115563 in words is "fifty-five billion, one hundred six million, one hundred fifteen thousand, five hundred sixty-three".