2725481 has 4 divisors (see below), whose sum is σ = 2973264. Its totient is φ = 2477700.

The previous prime is 2725453. The next prime is 2725501. The reversal of 2725481 is 1845272.

2725481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2725481 - 2¹⁴ = 2709097 is a prime.

It is a super-2 number, since 2×2725481² = 14856493362722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2725451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123875 + ... + 123896.

It is an arithmetic number, because the mean of its divisors is an integer number (743316).

2^2725481 is an apocalyptic number.

It is an amenable number.

2725481 is a deficient number, since it is larger than the sum of its proper divisors (247783).

2725481 is a wasteful number, since it uses less digits than its factorization.

2725481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247782.

The product of its digits is 4480, while the sum is 29.

The square root of 2725481 is about 1650.9030861925. The cubic root of 2725481 is about 139.6843398314.

The spelling of 2725481 in words is "two million, seven hundred twenty-five thousand, four hundred eighty-one".