2749555 has 4 divisors (see below), whose sum is σ = 3299472. Its totient is φ = 2199640.

The previous prime is 2749543. The next prime is 2749567. The reversal of 2749555 is 5559472.

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

It is an interprime number because it is at equal distance from previous prime (2749543) and next prime (2749567).

It is not a de Polignac number, because 2749555 - 2¹³ = 2741363 is a prime.

It is a Duffinian number.

2749555 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274951 + ... + 274960.

It is an arithmetic number, because the mean of its divisors is an integer number (824868).

2^2749555 is an apocalyptic number.

2749555 is a deficient number, since it is larger than the sum of its proper divisors (549917).

2749555 is an equidigital number, since it uses as much as digits as its factorization.

2749555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549916.

The product of its digits is 63000, while the sum is 37.

The square root of 2749555 is about 1658.1782172010. The cubic root of 2749555 is about 140.0944091099.

The spelling of 2749555 in words is "two million, seven hundred forty-nine thousand, five hundred fifty-five".