2557228671 has 32 divisors (see below), whose sum is σ = 4014763200. Its totient is φ = 1605864960.

The previous prime is 2557228669. The next prime is 2557228673. The reversal of 2557228671 is 1768227552.

2557228671 is a `hidden beast` number, since 2 + 5 + 572 + 2 + 8 + 6 + 71 = 666.

It is an interprime number because it is at equal distance from previous prime (2557228669) and next prime (2557228673).

It is not a de Polignac number, because 2557228671 - 2¹ = 2557228669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557228673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7726 + ... + 71931.

It is an arithmetic number, because the mean of its divisors is an integer number (125461350).

Almost surely, 2^2557228671 is an apocalyptic number.

2557228671 is a deficient number, since it is larger than the sum of its proper divisors (1457534529).

2557228671 is a wasteful number, since it uses less digits than its factorization.

2557228671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79736 (or 79730 counting only the distinct ones).

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

The square root of 2557228671 is about 50569.0485475058. The cubic root of 2557228671 is about 1367.4869430711.

The spelling of 2557228671 in words is "two billion, five hundred fifty-seven million, two hundred twenty-eight thousand, six hundred seventy-one".