2503997009 has 2 divisors, whose sum is σ = 2503997010. Its totient is φ = 2503997008.

The previous prime is 2503996981. The next prime is 2503997029. The reversal of 2503997009 is 9007993052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2074347025 + 429649984 = 45545^2 + 20728^2 .

It is a cyclic number.

It is not a de Polignac number, because 2503997009 - 2⁸ = 2503996753 is a prime.

It is not a weakly prime, because it can be changed into another prime (2503997029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251998504 + 1251998505.

It is an arithmetic number, because the mean of its divisors is an integer number (1251998505).

Almost surely, 2^2503997009 is an apocalyptic number.

It is an amenable number.

2503997009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503997009 is an equidigital number, since it uses as much as digits as its factorization.

2503997009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 2503997009 is about 50039.9541266776. The cubic root of 2503997009 is about 1357.9317266090.

The spelling of 2503997009 in words is "two billion, five hundred three million, nine hundred ninety-seven thousand, nine".