2750042549 has 4 divisors (see below), whose sum is σ = 2750832000. Its totient is φ = 2749253100.

The previous prime is 2750042531. The next prime is 2750042551. The reversal of 2750042549 is 9452400572.

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 a cyclic number.

It is not a de Polignac number, because 2750042549 - 2⁸ = 2750042293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750042509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389477 + ... + 396474.

It is an arithmetic number, because the mean of its divisors is an integer number (687708000).

Almost surely, 2^2750042549 is an apocalyptic number.

It is an amenable number.

2750042549 is a deficient number, since it is larger than the sum of its proper divisors (789451).

2750042549 is an equidigital number, since it uses as much as digits as its factorization.

2750042549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789450.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 2750042549 is about 52440.8480957354. The cubic root of 2750042549 is about 1401.0268909857.

The spelling of 2750042549 in words is "two billion, seven hundred fifty million, forty-two thousand, five hundred forty-nine".