2544881 has 4 divisors (see below), whose sum is σ = 2655552. Its totient is φ = 2434212.

The previous prime is 2544851. The next prime is 2544887. The reversal of 2544881 is 1884452.

It is a happy number.

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 2544881 - 2¹⁴ = 2528497 is a prime.

It is a super-2 number, since 2×2544881² = 12952838608322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2544887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55301 + ... + 55346.

It is an arithmetic number, because the mean of its divisors is an integer number (663888).

2^2544881 is an apocalyptic number.

It is an amenable number.

2544881 is a deficient number, since it is larger than the sum of its proper divisors (110671).

2544881 is a wasteful number, since it uses less digits than its factorization.

2544881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110670.

The product of its digits is 10240, while the sum is 32.

The square root of 2544881 is about 1595.2683159895. The cubic root of 2544881 is about 136.5282404324.

The spelling of 2544881 in words is "two million, five hundred forty-four thousand, eight hundred eighty-one".