55533075805523 has 2 divisors, whose sum is σ = 55533075805524. Its totient is φ = 55533075805522.

The previous prime is 55533075805511. The next prime is 55533075805547. The reversal of 55533075805523 is 32550857033555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55533075805523 - 2⁸ = 55533075805267 is a prime.

It is not a weakly prime, because it can be changed into another prime (55533075805553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27766537902761 + 27766537902762.

It is an arithmetic number, because the mean of its divisors is an integer number (27766537902762).

Almost surely, 2^{55533075805523} is an apocalyptic number.

55533075805523 is a deficient number, since it is larger than the sum of its proper divisors (1).

55533075805523 is an equidigital number, since it uses as much as digits as its factorization.

55533075805523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47250000, while the sum is 56.

The spelling of 55533075805523 in words is "fifty-five trillion, five hundred thirty-three billion, seventy-five million, eight hundred five thousand, five hundred twenty-three".