25651225603 has 2 divisors, whose sum is σ = 25651225604. Its totient is φ = 25651225602.

The previous prime is 25651225543. The next prime is 25651225627. The reversal of 25651225603 is 30652215652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25651225603 - 2⁹ = 25651225091 is a prime.

It is not a weakly prime, because it can be changed into another prime (25651225703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12825612801 + 12825612802.

It is an arithmetic number, because the mean of its divisors is an integer number (12825612802).

Almost surely, 2^25651225603 is an apocalyptic number.

25651225603 is a deficient number, since it is larger than the sum of its proper divisors (1).

25651225603 is an equidigital number, since it uses as much as digits as its factorization.

25651225603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 25651225603 in words is "twenty-five billion, six hundred fifty-one million, two hundred twenty-five thousand, six hundred three".