2557003684 has 12 divisors (see below), whose sum is σ = 4480672924. Its totient is φ = 1276811424.

The previous prime is 2557003661. The next prime is 2557003699. The reversal of 2557003684 is 4863007552.

It can be written as a sum of positive squares in 2 ways, for example, as 667188900 + 1889814784 = 25830^2 + 43472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419199 + ... + 425254.

Almost surely, 2^2557003684 is an apocalyptic number.

It is an amenable number.

2557003684 is a deficient number, since it is larger than the sum of its proper divisors (1923669240).

2557003684 is a wasteful number, since it uses less digits than its factorization.

2557003684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845214 (or 845212 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 2557003684 is about 50566.8239461408. The cubic root of 2557003684 is about 1367.4468377008.

The spelling of 2557003684 in words is "two billion, five hundred fifty-seven million, three thousand, six hundred eighty-four".