2755530552778 has 4 divisors (see below), whose sum is σ = 4133295829170. Its totient is φ = 1377765276388.

The previous prime is 2755530552737. The next prime is 2755530552781. The reversal of 2755530552778 is 8772550355572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2405827451329 + 349703101449 = 1551073^2 + 591357^2 .

It is a super-4 number, since 4×2755530552778⁴ (a number of 51 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688882638193 + ... + 688882638196.

Almost surely, 2^{2755530552778} is an apocalyptic number.

2755530552778 is a deficient number, since it is larger than the sum of its proper divisors (1377765276392).

2755530552778 is a wasteful number, since it uses less digits than its factorization.

2755530552778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377765276391.

The product of its (nonzero) digits is 102900000, while the sum is 61.

The spelling of 2755530552778 in words is "two trillion, seven hundred fifty-five billion, five hundred thirty million, five hundred fifty-two thousand, seven hundred seventy-eight".