25523545051544 has 16 divisors (see below), whose sum is σ = 50671743852600. Its totient is φ = 12011080024192.

The previous prime is 25523545051489. The next prime is 25523545051549. The reversal of 25523545051544 is 44515054532552.

It is a junction number, because it is equal to n+sod(n) for n = 25523545051492 and 25523545051501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25523545051549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93836562554 + ... + 93836562825.

Almost surely, 2^{25523545051544} is an apocalyptic number.

It is an amenable number.

25523545051544 is a deficient number, since it is larger than the sum of its proper divisors (25148198801056).

25523545051544 is a wasteful number, since it uses less digits than its factorization.

25523545051544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187673125402 (or 187673125398 counting only the distinct ones).

The product of its (nonzero) digits is 12000000, while the sum is 50.

The spelling of 25523545051544 in words is "twenty-five trillion, five hundred twenty-three billion, five hundred forty-five million, fifty-one thousand, five hundred forty-four".