2544290549 has 4 divisors (see below), whose sum is σ = 2574944736. Its totient is φ = 2513636364.

The previous prime is 2544290543. The next prime is 2544290561. The reversal of 2544290549 is 9450924452.

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 a de Polignac number, because none of the positive numbers 2^k-2544290549 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 (2544290543) 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, 15326969 + ... + 15327134.

It is an arithmetic number, because the mean of its divisors is an integer number (643736184).

Almost surely, 2^2544290549 is an apocalyptic number.

It is an amenable number.

2544290549 is a deficient number, since it is larger than the sum of its proper divisors (30654187).

2544290549 is an equidigital number, since it uses as much as digits as its factorization.

2544290549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30654186.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 2544290549 is about 50440.9610237553. The cubic root of 2544290549 is about 1365.1768074139.

The spelling of 2544290549 in words is "two billion, five hundred forty-four million, two hundred ninety thousand, five hundred forty-nine".