2756047409 has 2 divisors, whose sum is σ = 2756047410. Its totient is φ = 2756047408.

The previous prime is 2756047403. The next prime is 2756047439. The reversal of 2756047409 is 9047406572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1949487409 + 806560000 = 44153^2 + 28400^2 .

It is a cyclic number.

It is not a de Polignac number, because 2756047409 - 2¹⁶ = 2755981873 is a prime.

It is a super-2 number, since 2×2756047409² = 15191594641311226562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2756047409.

It is not a weakly prime, because it can be changed into another prime (2756047403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378023704 + 1378023705.

It is an arithmetic number, because the mean of its divisors is an integer number (1378023705).

Almost surely, 2^2756047409 is an apocalyptic number.

It is an amenable number.

2756047409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2756047409 is an equidigital number, since it uses as much as digits as its factorization.

2756047409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 2756047409 is about 52498.0705264489. The cubic root of 2756047409 is about 1402.0458878701.

The spelling of 2756047409 in words is "two billion, seven hundred fifty-six million, forty-seven thousand, four hundred nine".