2756378553 has 4 divisors (see below), whose sum is σ = 3675171408. Its totient is φ = 1837585700.

The previous prime is 2756378549. The next prime is 2756378557. The reversal of 2756378553 is 3558736572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2756378549) and next prime (2756378557).

It is a cyclic number.

It is not a de Polignac number, because 2756378553 - 2² = 2756378549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2756378496 and 2756378505.

It is not an unprimeable number, because it can be changed into a prime (2756378557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459396423 + ... + 459396428.

It is an arithmetic number, because the mean of its divisors is an integer number (918792852).

Almost surely, 2^2756378553 is an apocalyptic number.

It is an amenable number.

2756378553 is a deficient number, since it is larger than the sum of its proper divisors (918792855).

2756378553 is an equidigital number, since it uses as much as digits as its factorization.

2756378553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918792854.

The product of its digits is 5292000, while the sum is 51.

The square root of 2756378553 is about 52501.2243000104. The cubic root of 2756378553 is about 1402.1020383907.

The spelling of 2756378553 in words is "two billion, seven hundred fifty-six million, three hundred seventy-eight thousand, five hundred fifty-three".