2725578 has 24 divisors (see below), whose sum is σ = 6018948. Its totient is φ = 891072.

The previous prime is 2725571. The next prime is 2725621. The reversal of 2725578 is 8755272.

2725578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2614689 + 110889 = 1617^2 + 333^2 .

It is not an unprimeable number, because it can be changed into a prime (2725571) 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 11 ways as a sum of consecutive naturals, for example, 475 + ... + 2382.

2^2725578 is an apocalyptic number.

2725578 is an abundant number, since it is smaller than the sum of its proper divisors (3293370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2725578 is a wasteful number, since it uses less digits than its factorization.

2725578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2915 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 2725578 is about 1650.9324637913. The cubic root of 2725578 is about 139.6859969359.

The spelling of 2725578 in words is "two million, seven hundred twenty-five thousand, five hundred seventy-eight".