2506013 has 2 divisors, whose sum is σ = 2506014. Its totient is φ = 2506012.

The previous prime is 2506003. The next prime is 2506033. The reversal of 2506013 is 3106052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2474329 + 31684 = 1573^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506013 - 2²⁰ = 1457437 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2505982 and 2506000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2506003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253006 + 1253007.

It is an arithmetic number, because the mean of its divisors is an integer number (1253007).

2^2506013 is an apocalyptic number.

It is an amenable number.

2506013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506013 is an equidigital number, since it uses as much as digits as its factorization.

2506013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2506013 is about 1583.0391656557. The cubic root of 2506013 is about 135.8296056621.

The spelling of 2506013 in words is "two million, five hundred six thousand, thirteen".