2552247209 has 2 divisors, whose sum is σ = 2552247210. Its totient is φ = 2552247208.

The previous prime is 2552247199. The next prime is 2552247223. The reversal of 2552247209 is 9027422552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1829443984 + 722803225 = 42772^2 + 26885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2552247209 - 2¹⁶ = 2552181673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2552247289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276123604 + 1276123605.

It is an arithmetic number, because the mean of its divisors is an integer number (1276123605).

Almost surely, 2^2552247209 is an apocalyptic number.

It is an amenable number.

2552247209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2552247209 is an equidigital number, since it uses as much as digits as its factorization.

2552247209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 2552247209 is about 50519.7704765174. The cubic root of 2552247209 is about 1366.5984144843.

The spelling of 2552247209 in words is "two billion, five hundred fifty-two million, two hundred forty-seven thousand, two hundred nine".