5051009 has 2 divisors, whose sum is σ = 5051010. Its totient is φ = 5051008.

The previous prime is 5050999. The next prime is 5051029. The reversal of 5051009 is 9001505.

It is an a-pointer prime, because the next prime (5051029) can be obtained adding 5051009 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4963984 + 87025 = 2228^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 5051009 - 2⁴ = 5050993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5051029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525504 + 2525505.

It is an arithmetic number, because the mean of its divisors is an integer number (2525505).

Almost surely, 2^5051009 is an apocalyptic number.

It is an amenable number.

5051009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5051009 is an equidigital number, since it uses as much as digits as its factorization.

5051009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 5051009 is about 2247.4449937651. Note that the first 3 decimals coincide. The cubic root of 5051009 is about 171.5771227899.

It can be divided in two parts, 505 and 1009, that multiplied together give a triangular number (509545 = T₁₀₀₉).

The spelling of 5051009 in words is "five million, fifty-one thousand, nine".