2555983636 has 12 divisors (see below), whose sum is σ = 4473331828. Its totient is φ = 1277888832.

The previous prime is 2555983621. The next prime is 2555983649. The reversal of 2555983636 is 6363895552.

It can be written as a sum of positive squares in 2 ways, for example, as 2469493636 + 86490000 = 49694^2 + 9300^2 .

It is a congruent number.

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, 68110 + ... + 98746.

Almost surely, 2^2555983636 is an apocalyptic number.

It is an amenable number.

2555983636 is a deficient number, since it is larger than the sum of its proper divisors (1917348192).

2555983636 is a wasteful number, since it uses less digits than its factorization.

2555983636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51498 (or 51496 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 52.

The square root of 2555983636 is about 50556.7368013403. The cubic root of 2555983636 is about 1367.2649781097.

The spelling of 2555983636 in words is "two billion, five hundred fifty-five million, nine hundred eighty-three thousand, six hundred thirty-six".