52555609 has 2 divisors, whose sum is σ = 52555610. Its totient is φ = 52555608.

The previous prime is 52555597. The next prime is 52555631. The reversal of 52555609 is 90655525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51883209 + 672400 = 7203^2 + 820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52555609 is a prime.

It is not a weakly prime, because it can be changed into another prime (52555639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26277804 + 26277805.

It is an arithmetic number, because the mean of its divisors is an integer number (26277805).

Almost surely, 2^52555609 is an apocalyptic number.

It is an amenable number.

52555609 is a deficient number, since it is larger than the sum of its proper divisors (1).

52555609 is an equidigital number, since it uses as much as digits as its factorization.

52555609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 52555609 is about 7249.5247430435. The cubic root of 52555609 is about 374.5757786480.

The spelling of 52555609 in words is "fifty-two million, five hundred fifty-five thousand, six hundred nine".