2555663630 has 96 divisors (see below), whose sum is σ = 5341339584. Its totient is φ = 877713408.

The previous prime is 2555663597. The next prime is 2555663641. The reversal of 2555663630 is 363665552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1437302 + ... + 1439078.

It is an arithmetic number, because the mean of its divisors is an integer number (55638954).

Almost surely, 2^2555663630 is an apocalyptic number.

2555663630 is an abundant number, since it is smaller than the sum of its proper divisors (2785675954).

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

2555663630 is a wasteful number, since it uses less digits than its factorization.

2555663630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870 (or 1857 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 41.

The square root of 2555663630 is about 50553.5718817177. The cubic root of 2555663630 is about 1367.2079157650.

The spelling of 2555663630 in words is "two billion, five hundred fifty-five million, six hundred sixty-three thousand, six hundred thirty".