2547518040557 has 10 divisors (see below), whose sum is σ = 2971927546158. Its totient is φ = 2183586889848.

The previous prime is 2547518040541. The next prime is 2547518040563. The reversal of 2547518040557 is 7550408157452.

2547518040557 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2429667270121 + 117850770436 = 1558739^2 + 343294^2 .

It is not a de Polignac number, because 2547518040557 - 2⁴ = 2547518040541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2547518040499 and 2547518040508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547518040577) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 530509478 + ... + 530514279.

Almost surely, 2^{2547518040557} is an apocalyptic number.

It is an amenable number.

2547518040557 is a deficient number, since it is larger than the sum of its proper divisors (424409505601).

2547518040557 is an frugal number, since it uses more digits than its factorization.

2547518040557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061023785 (or 1061023764 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 53.

The spelling of 2547518040557 in words is "two trillion, five hundred forty-seven billion, five hundred eighteen million, forty thousand, five hundred fifty-seven".