2554721 has 8 divisors (see below), whose sum is σ = 2896320. Its totient is φ = 2233872.

The previous prime is 2554711. The next prime is 2554729. The reversal of 2554721 is 1274552.

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 2554721 - 2¹⁴ = 2538337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2554729) 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, 4925 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (362040).

2^2554721 is an apocalyptic number.

It is an amenable number.

2554721 is a deficient number, since it is larger than the sum of its proper divisors (341599).

2554721 is a wasteful number, since it uses less digits than its factorization.

2554721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10375.

The product of its digits is 2800, while the sum is 26.

The square root of 2554721 is about 1598.3494611630. The cubic root of 2554721 is about 136.7039801612.

The spelling of 2554721 in words is "two million, five hundred fifty-four thousand, seven hundred twenty-one".