2557004928 has 64 divisors (see below), whose sum is σ = 6920251200. Its totient is φ = 836246528.

The previous prime is 2557004909. The next prime is 2557004999. The reversal of 2557004928 is 8294007552.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 2557004928.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42468 + ... + 83171.

It is an arithmetic number, because the mean of its divisors is an integer number (108128925).

Almost surely, 2^2557004928 is an apocalyptic number.

It is an amenable number.

2557004928 is an abundant number, since it is smaller than the sum of its proper divisors (4363246272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2557004928 is a wasteful number, since it uses less digits than its factorization.

2557004928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125709 (or 125697 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 2557004928 is about 50566.8362466943. The cubic root of 2557004928 is about 1367.4470594583.

The spelling of 2557004928 in words is "two billion, five hundred fifty-seven million, four thousand, nine hundred twenty-eight".