2581655884 has 12 divisors (see below), whose sum is σ = 4714328304. Its totient is φ = 1234704944.

The previous prime is 2581655863. The next prime is 2581655891. The reversal of 2581655884 is 4885561852.

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, 14030647 + ... + 14030830.

It is an arithmetic number, because the mean of its divisors is an integer number (392860692).

Almost surely, 2^2581655884 is an apocalyptic number.

It is an amenable number.

2581655884 is a deficient number, since it is larger than the sum of its proper divisors (2132672420).

2581655884 is a wasteful number, since it uses less digits than its factorization.

2581655884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061504 (or 28061502 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 52.

The square root of 2581655884 is about 50809.9978744341. The cubic root of 2581655884 is about 1371.8273312439.

The spelling of 2581655884 in words is "two billion, five hundred eighty-one million, six hundred fifty-five thousand, eight hundred eighty-four".