25013563 has 2 divisors, whose sum is σ = 25013564. Its totient is φ = 25013562.

The previous prime is 25013561. The next prime is 25013587. The reversal of 25013563 is 36531052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25013563 - 2¹ = 25013561 is a prime.

It is a super-3 number, since 3×25013563³ (a number of 23 digits) contains 333 as substring.

Together with 25013561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25013561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12506781 + 12506782.

It is an arithmetic number, because the mean of its divisors is an integer number (12506782).

Almost surely, 2^25013563 is an apocalyptic number.

25013563 is a deficient number, since it is larger than the sum of its proper divisors (1).

25013563 is an equidigital number, since it uses as much as digits as its factorization.

25013563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25013563 is about 5001.3561160949. The cubic root of 25013563 is about 292.4546421985.

The spelling of 25013563 in words is "twenty-five million, thirteen thousand, five hundred sixty-three".