2551606972 has 6 divisors (see below), whose sum is σ = 4465312208. Its totient is φ = 1275803484.

The previous prime is 2551606969. The next prime is 2551607041. The reversal of 2551606972 is 2796061552.

2551606972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318950868 + ... + 318950875.

Almost surely, 2^2551606972 is an apocalyptic number.

It is an amenable number.

2551606972 is a deficient number, since it is larger than the sum of its proper divisors (1913705236).

2551606972 is a wasteful number, since it uses less digits than its factorization.

2551606972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637901747 (or 637901745 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 2551606972 is about 50513.4335795935. The cubic root of 2551606972 is about 1366.4841334908.

The spelling of 2551606972 in words is "two billion, five hundred fifty-one million, six hundred six thousand, nine hundred seventy-two".