25523606240445 has 16 divisors (see below), whose sum is σ = 41097883173120. Its totient is φ = 13525885598784.

The previous prime is 25523606240441. The next prime is 25523606240449. The reversal of 25523606240445 is 54404260632552.

It is an interprime number because it is at equal distance from previous prime (25523606240441) and next prime (25523606240449).

It is not a de Polignac number, because 25523606240445 - 2² = 25523606240441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25523606240394 and 25523606240403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25523606240441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5419022325 + ... + 5419027034.

It is an arithmetic number, because the mean of its divisors is an integer number (2568617698320).

Almost surely, 2^{25523606240445} is an apocalyptic number.

It is an amenable number.

25523606240445 is a deficient number, since it is larger than the sum of its proper divisors (15574276932675).

25523606240445 is a wasteful number, since it uses less digits than its factorization.

25523606240445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10838049524.

The product of its (nonzero) digits is 6912000, while the sum is 48.

Adding to 25523606240445 its reverse (54404260632552), we get a palindrome (79927866872997).

The spelling of 25523606240445 in words is "twenty-five trillion, five hundred twenty-three billion, six hundred six million, two hundred forty thousand, four hundred forty-five".