53555549 has 2 divisors, whose sum is σ = 53555550. Its totient is φ = 53555548.

The previous prime is 53555527. The next prime is 53555561. The reversal of 53555549 is 94555535.

53555549 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., 51912025 + 1643524 = 7205^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 53555549 - 2¹⁶ = 53490013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53551549) 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, 26777774 + 26777775.

It is an arithmetic number, because the mean of its divisors is an integer number (26777775).

Almost surely, 2^53555549 is an apocalyptic number.

It is an amenable number.

53555549 is a deficient number, since it is larger than the sum of its proper divisors (1).

53555549 is an equidigital number, since it uses as much as digits as its factorization.

53555549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 337500, while the sum is 41.

The square root of 53555549 is about 7318.1656854706. The cubic root of 53555549 is about 376.9364695345.

The spelling of 53555549 in words is "fifty-three million, five hundred fifty-five thousand, five hundred forty-nine".