55001549 has 2 divisors, whose sum is σ = 55001550. Its totient is φ = 55001548.

The previous prime is 55001539. The next prime is 55001567. The reversal of 55001549 is 94510055.

55001549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53027524 + 1974025 = 7282^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 55001549 - 2²⁰ = 53952973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55001519) 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, 27500774 + 27500775.

It is an arithmetic number, because the mean of its divisors is an integer number (27500775).

Almost surely, 2^55001549 is an apocalyptic number.

It is an amenable number.

55001549 is a deficient number, since it is larger than the sum of its proper divisors (1).

55001549 is an equidigital number, since it uses as much as digits as its factorization.

55001549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 55001549 is about 7416.3029199191. The cubic root of 55001549 is about 380.2988162083.

The spelling of 55001549 in words is "fifty-five million, one thousand, five hundred forty-nine".