2756248609 has 2 divisors, whose sum is σ = 2756248610. Its totient is φ = 2756248608.

The previous prime is 2756248603. The next prime is 2756248673. The reversal of 2756248609 is 9068426572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2755935009 + 313600 = 52497^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2756248609 - 2³ = 2756248601 is a prime.

It is a super-2 number, since 2×2756248609² = 15193812789228869762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2756248601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378124304 + 1378124305.

It is an arithmetic number, because the mean of its divisors is an integer number (1378124305).

Almost surely, 2^2756248609 is an apocalyptic number.

It is an amenable number.

2756248609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2756248609 is an equidigital number, since it uses as much as digits as its factorization.

2756248609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 2756248609 is about 52499.9867523793. The cubic root of 2756248609 is about 1402.0800049379.

The spelling of 2756248609 in words is "two billion, seven hundred fifty-six million, two hundred forty-eight thousand, six hundred nine".