52555409 has 2 divisors, whose sum is σ = 52555410. Its totient is φ = 52555408.

The previous prime is 52555397. The next prime is 52555423. The reversal of 52555409 is 90455525.

52555409 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., 47997184 + 4558225 = 6928^2 + 2135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52555409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52555439) 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, 26277704 + 26277705.

It is an arithmetic number, because the mean of its divisors is an integer number (26277705).

Almost surely, 2^52555409 is an apocalyptic number.

It is an amenable number.

52555409 is a deficient number, since it is larger than the sum of its proper divisors (1).

52555409 is an equidigital number, since it uses as much as digits as its factorization.

52555409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 52555409 is about 7249.5109490227. The cubic root of 52555409 is about 374.5753034989.

The spelling of 52555409 in words is "fifty-two million, five hundred fifty-five thousand, four hundred nine".