55854553 has 2 divisors, whose sum is σ = 55854554. Its totient is φ = 55854552.

The previous prime is 55854523. The next prime is 55854569. The reversal of 55854553 is 35545855.

55854553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43520409 + 12334144 = 6597^2 + 3512^2 .

It is a cyclic number.

It is not a de Polignac number, because 55854553 - 2⁵ = 55854521 is a prime.

It is not a weakly prime, because it can be changed into another prime (55854523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27927276 + 27927277.

It is an arithmetic number, because the mean of its divisors is an integer number (27927277).

Almost surely, 2^55854553 is an apocalyptic number.

It is an amenable number.

55854553 is a deficient number, since it is larger than the sum of its proper divisors (1).

55854553 is an equidigital number, since it uses as much as digits as its factorization.

55854553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300000, while the sum is 40.

The square root of 55854553 is about 7473.5903687585. The cubic root of 55854553 is about 382.2547230672.

The spelling of 55854553 in words is "fifty-five million, eight hundred fifty-four thousand, five hundred fifty-three".