52671209 has 2 divisors, whose sum is σ = 52671210. Its totient is φ = 52671208.

The previous prime is 52671191. The next prime is 52671251. The reversal of 52671209 is 90217625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33965584 + 18705625 = 5828^2 + 4325^2 .

It is a cyclic number.

It is not a de Polignac number, because 52671209 - 2²⁰ = 51622633 is a prime.

It is not a weakly prime, because it can be changed into another prime (52671109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26335604 + 26335605.

It is an arithmetic number, because the mean of its divisors is an integer number (26335605).

Almost surely, 2^52671209 is an apocalyptic number.

It is an amenable number.

52671209 is a deficient number, since it is larger than the sum of its proper divisors (1).

52671209 is an equidigital number, since it uses as much as digits as its factorization.

52671209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 52671209 is about 7257.4933000314. The cubic root of 52671209 is about 374.8502133637.

The spelling of 52671209 in words is "fifty-two million, six hundred seventy-one thousand, two hundred nine".