2556001804 has 6 divisors (see below), whose sum is σ = 4473003164. Its totient is φ = 1278000900.

The previous prime is 2556001793. The next prime is 2556001823. The reversal of 2556001804 is 4081006552.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319500222 + ... + 319500229.

Almost surely, 2^2556001804 is an apocalyptic number.

It is an amenable number.

2556001804 is a deficient number, since it is larger than the sum of its proper divisors (1917001360).

2556001804 is a wasteful number, since it uses less digits than its factorization.

2556001804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639000455 (or 639000453 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 2556001804 is about 50556.9164803393. The cubic root of 2556001804 is about 1367.2682176206.

The spelling of 2556001804 in words is "two billion, five hundred fifty-six million, one thousand, eight hundred four".