2580547856 has 10 divisors (see below), whose sum is σ = 4999811502. Its totient is φ = 1290273920.

The previous prime is 2580547741. The next prime is 2580547867. The reversal of 2580547856 is 6587450852.

It can be written as a sum of positive squares in only one way, i.e., 2524057600 + 56490256 = 50240^2 + 7516^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80642105 + ... + 80642136.

Almost surely, 2^2580547856 is an apocalyptic number.

It is an amenable number.

2580547856 is a deficient number, since it is larger than the sum of its proper divisors (2419263646).

2580547856 is a wasteful number, since it uses less digits than its factorization.

2580547856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161284249 (or 161284243 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 50.

The square root of 2580547856 is about 50799.0930627703. The cubic root of 2580547856 is about 1371.6310437092.

The spelling of 2580547856 in words is "two billion, five hundred eighty million, five hundred forty-seven thousand, eight hundred fifty-six".