54505005551 has 2 divisors, whose sum is σ = 54505005552. Its totient is φ = 54505005550.

The previous prime is 54505005517. The next prime is 54505005559. The reversal of 54505005551 is 15550050545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54505005551 - 2¹⁸ = 54504743407 is a prime.

It is a super-2 number, since 2×54505005551² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54505005559) 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, 27252502775 + 27252502776.

It is an arithmetic number, because the mean of its divisors is an integer number (27252502776).

Almost surely, 2^54505005551 is an apocalyptic number.

54505005551 is a deficient number, since it is larger than the sum of its proper divisors (1).

54505005551 is an equidigital number, since it uses as much as digits as its factorization.

54505005551 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 54505005551 in words is "fifty-four billion, five hundred five million, five thousand, five hundred fifty-one".