25656465255 has 16 divisors (see below), whose sum is σ = 41129148384. Its totient is φ = 13657180160.

The previous prime is 25656465217. The next prime is 25656465259. The reversal of 25656465255 is 55256465652.

It is not a de Polignac number, because 25656465255 - 2¹¹ = 25656463207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25656465198 and 25656465207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25656465259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1633674 + ... + 1649303.

It is an arithmetic number, because the mean of its divisors is an integer number (2570571774).

Almost surely, 2^25656465255 is an apocalyptic number.

25656465255 is a deficient number, since it is larger than the sum of its proper divisors (15472683129).

25656465255 is a wasteful number, since it uses less digits than its factorization.

25656465255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283506.

The product of its digits is 10800000, while the sum is 51.

The spelling of 25656465255 in words is "twenty-five billion, six hundred fifty-six million, four hundred sixty-five thousand, two hundred fifty-five".