2805202949 has 2 divisors, whose sum is σ = 2805202950. Its totient is φ = 2805202948.

The previous prime is 2805202931. The next prime is 2805202957. The reversal of 2805202949 is 9492025082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1896602500 + 908600449 = 43550^2 + 30143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2805202949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2805202919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402601474 + 1402601475.

It is an arithmetic number, because the mean of its divisors is an integer number (1402601475).

Almost surely, 2^2805202949 is an apocalyptic number.

It is an amenable number.

2805202949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805202949 is an equidigital number, since it uses as much as digits as its factorization.

2805202949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 2805202949 is about 52964.1666506705. The cubic root of 2805202949 is about 1410.3322237458.

The spelling of 2805202949 in words is "two billion, eight hundred five million, two hundred two thousand, nine hundred forty-nine".