25913603 has 2 divisors, whose sum is σ = 25913604. Its totient is φ = 25913602.

The previous prime is 25913597. The next prime is 25913609. The reversal of 25913603 is 30631952.

It is a balanced prime because it is at equal distance from previous prime (25913597) and next prime (25913609).

It is a cyclic number.

It is not a de Polignac number, because 25913603 - 2¹⁴ = 25897219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25913609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12956801 + 12956802.

It is an arithmetic number, because the mean of its divisors is an integer number (12956802).

Almost surely, 2^25913603 is an apocalyptic number.

25913603 is a deficient number, since it is larger than the sum of its proper divisors (1).

25913603 is an equidigital number, since it uses as much as digits as its factorization.

25913603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 25913603 is about 5090.5405410428. The cubic root of 25913603 is about 295.9211006840.

The spelling of 25913603 in words is "twenty-five million, nine hundred thirteen thousand, six hundred three".