55505049874499 has 2 divisors, whose sum is σ = 55505049874500. Its totient is φ = 55505049874498.

The previous prime is 55505049874471. The next prime is 55505049874501. The reversal of 55505049874499 is 99447894050555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55505049874499 is a prime.

Together with 55505049874501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55505049874409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752524937249 + 27752524937250.

It is an arithmetic number, because the mean of its divisors is an integer number (27752524937250).

Almost surely, 2^{55505049874499} is an apocalyptic number.

55505049874499 is a deficient number, since it is larger than the sum of its proper divisors (1).

55505049874499 is an equidigital number, since it uses as much as digits as its factorization.

55505049874499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960000, while the sum is 74.

The spelling of 55505049874499 in words is "fifty-five trillion, five hundred five billion, forty-nine million, eight hundred seventy-four thousand, four hundred ninety-nine".