2755638436 has 6 divisors (see below), whose sum is σ = 4822367270. Its totient is φ = 1377819216.

The previous prime is 2755638427. The next prime is 2755638437. The reversal of 2755638436 is 6348365572.

2755638436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1943046400 + 812592036 = 44080^2 + 28506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2755638436.

It is not an unprimeable number, because it can be changed into a prime (2755638437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344454801 + ... + 344454808.

Almost surely, 2^2755638436 is an apocalyptic number.

It is an amenable number.

2755638436 is a deficient number, since it is larger than the sum of its proper divisors (2066728834).

2755638436 is a wasteful number, since it uses less digits than its factorization.

2755638436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688909613 (or 688909611 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 49.

The square root of 2755638436 is about 52494.1752578322. The cubic root of 2755638436 is about 1401.9765340465.

The spelling of 2755638436 in words is "two billion, seven hundred fifty-five million, six hundred thirty-eight thousand, four hundred thirty-six".