2004521056 has 24 divisors (see below), whose sum is σ = 4020864624. Its totient is φ = 983349120.

The previous prime is 2004521053. The next prime is 2004521069. The reversal of 2004521056 is 6501254002.

It is a self number, because there is not a number n which added to its sum of digits gives 2004521056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004521053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589260 + ... + 592651.

It is an arithmetic number, because the mean of its divisors is an integer number (167536026).

Almost surely, 2^2004521056 is an apocalyptic number.

It is an amenable number.

2004521056 is an abundant number, since it is smaller than the sum of its proper divisors (2016343568).

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

2004521056 is a wasteful number, since it uses less digits than its factorization.

2004521056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181974 (or 1181966 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2004521056 is about 44771.8779592726. The cubic root of 2004521056 is about 1260.8696977089.

Adding to 2004521056 its reverse (6501254002), we get a palindrome (8505775058).

The spelling of 2004521056 in words is "two billion, four million, five hundred twenty-one thousand, fifty-six".