2554649281 has 8 divisors (see below), whose sum is σ = 2587223520. Its totient is φ = 2522117952.

The previous prime is 2554649269. The next prime is 2554649291. The reversal of 2554649281 is 1829464552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2554649281 - 2¹⁵ = 2554616513 is a prime.

It is a super-2 number, since 2×2554649281² = 13052465897827633922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2554649291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 118990 + ... + 138808.

It is an arithmetic number, because the mean of its divisors is an integer number (323402940).

Almost surely, 2^2554649281 is an apocalyptic number.

It is an amenable number.

2554649281 is a deficient number, since it is larger than the sum of its proper divisors (32574239).

2554649281 is a wasteful number, since it uses less digits than its factorization.

2554649281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21455.

The product of its digits is 691200, while the sum is 46.

The square root of 2554649281 is about 50543.5384693237. The cubic root of 2554649281 is about 1367.0270091328.

It can be divided in two parts, 2554649 and 281, that added together give a triangular number (2554930 = T₂₂₆₀).

The spelling of 2554649281 in words is "two billion, five hundred fifty-four million, six hundred forty-nine thousand, two hundred eighty-one".