25623045365 has 12 divisors (see below), whose sum is σ = 32451127884. Its totient is φ = 19419569856.

The previous prime is 25623045359. The next prime is 25623045389. The reversal of 25623045365 is 56354032652.

It can be written as a sum of positive squares in 2 ways, for example, as 5629650961 + 19993394404 = 75031^2 + 141398^2 .

It is not a de Polignac number, because 25623045365 - 2²² = 25618851061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7095992 + ... + 7099601.

It is an arithmetic number, because the mean of its divisors is an integer number (2704260657).

Almost surely, 2^25623045365 is an apocalyptic number.

It is an amenable number.

25623045365 is a deficient number, since it is larger than the sum of its proper divisors (6828082519).

25623045365 is a wasteful number, since it uses less digits than its factorization.

25623045365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14195636 (or 14195617 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 25623045365 in words is "twenty-five billion, six hundred twenty-three million, forty-five thousand, three hundred sixty-five".