2513663 has 2 divisors, whose sum is σ = 2513664. Its totient is φ = 2513662.

The previous prime is 2513659. The next prime is 2513677. The reversal of 2513663 is 3663152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2513663 - 2² = 2513659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2513653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256831 + 1256832.

It is an arithmetic number, because the mean of its divisors is an integer number (1256832).

2^2513663 is an apocalyptic number.

2513663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2513663 is an equidigital number, since it uses as much as digits as its factorization.

2513663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 2513663 is about 1585.4535628646. The cubic root of 2513663 is about 135.9676790264.

The spelling of 2513663 in words is "two million, five hundred thirteen thousand, six hundred sixty-three".