2495000009 has 2 divisors, whose sum is σ = 2495000010. Its totient is φ = 2495000008.

The previous prime is 2494999961. The next prime is 2495000093. The reversal of 2495000009 is 9000005942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2447775625 + 47224384 = 49475^2 + 6872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2495000009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2495020009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1247500004 + 1247500005.

It is an arithmetic number, because the mean of its divisors is an integer number (1247500005).

Almost surely, 2^2495000009 is an apocalyptic number.

It is an amenable number.

2495000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2495000009 is an equidigital number, since it uses as much as digits as its factorization.

2495000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 2495000009 is about 49949.9750650588. The cubic root of 2495000009 is about 1356.3034001810.

The spelling of 2495000009 in words is "two billion, four hundred ninety-five million, nine", and thus it is an aban number.