2512409 has 2 divisors, whose sum is σ = 2512410. Its totient is φ = 2512408.

The previous prime is 2512403. The next prime is 2512417. The reversal of 2512409 is 9042152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1651225 + 861184 = 1285^2 + 928^2 .

It is a cyclic number.

It is not a de Polignac number, because 2512409 - 2¹² = 2508313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (2512403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256204 + 1256205.

It is an arithmetic number, because the mean of its divisors is an integer number (1256205).

2^2512409 is an apocalyptic number.

It is an amenable number.

2512409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2512409 is an equidigital number, since it uses as much as digits as its factorization.

2512409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2512409 is about 1585.0580431013. The cubic root of 2512409 is about 135.9450650390.

The spelling of 2512409 in words is "two million, five hundred twelve thousand, four hundred nine".