2557168047 has 18 divisors (see below), whose sum is σ = 4296738888. Its totient is φ = 1461238632.

The previous prime is 2557168039. The next prime is 2557168049. The reversal of 2557168047 is 7408617552.

2557168047 is a `hidden beast` number, since 2 + 557 + 16 + 80 + 4 + 7 = 666.

It is not a de Polignac number, because 2557168047 - 2³ = 2557168039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2557167993 and 2557168011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557168049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2898843 + ... + 2899724.

It is an arithmetic number, because the mean of its divisors is an integer number (238707716).

Almost surely, 2^2557168047 is an apocalyptic number.

2557168047 is a deficient number, since it is larger than the sum of its proper divisors (1739570841).

2557168047 is a wasteful number, since it uses less digits than its factorization.

2557168047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798587 (or 5798577 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 2557168047 is about 50568.4491259125. The cubic root of 2557168047 is about 1367.4761366873.

The spelling of 2557168047 in words is "two billion, five hundred fifty-seven million, one hundred sixty-eight thousand, forty-seven".