55500054551 has 2 divisors, whose sum is σ = 55500054552. Its totient is φ = 55500054550.

The previous prime is 55500054523. The next prime is 55500054553. The reversal of 55500054551 is 15545000555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55500054551 is a prime.

Together with 55500054553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55500054553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750027275 + 27750027276.

It is an arithmetic number, because the mean of its divisors is an integer number (27750027276).

Almost surely, 2^55500054551 is an apocalyptic number.

55500054551 is a deficient number, since it is larger than the sum of its proper divisors (1).

55500054551 is an equidigital number, since it uses as much as digits as its factorization.

55500054551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62500, while the sum is 35.

The spelling of 55500054551 in words is "fifty-five billion, five hundred million, fifty-four thousand, five hundred fifty-one".