5518900521725 has 24 divisors (see below), whose sum is σ = 6930645874560. Its totient is φ = 4358865813120.

The previous prime is 5518900521713. The next prime is 5518900521751. The reversal of 5518900521725 is 5271250098155.

It is not a de Polignac number, because 5518900521725 - 2¹⁴ = 5518900505341 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 24668969 + ... + 24891681.

It is an arithmetic number, because the mean of its divisors is an integer number (288776911440).

Almost surely, 2^{5518900521725} is an apocalyptic number.

It is an amenable number.

5518900521725 is a deficient number, since it is larger than the sum of its proper divisors (1411745352835).

5518900521725 is a wasteful number, since it uses less digits than its factorization.

5518900521725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235349 (or 235344 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 50.

The spelling of 5518900521725 in words is "five trillion, five hundred eighteen billion, nine hundred million, five hundred twenty-one thousand, seven hundred twenty-five".