2526605 has 4 divisors (see below), whose sum is σ = 3031932. Its totient is φ = 2021280.

The previous prime is 2526599. The next prime is 2526607. The reversal of 2526605 is 5066252.

It is a happy number.

2526605 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.

It can be written as a sum of positive squares in 2 ways, for example, as 561001 + 1965604 = 749^2 + 1402^2 .

It is not a de Polignac number, because 2526605 - 2⁶ = 2526541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2526607) 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, 252656 + ... + 252665.

It is an arithmetic number, because the mean of its divisors is an integer number (757983).

2^2526605 is an apocalyptic number.

It is an amenable number.

2526605 is a deficient number, since it is larger than the sum of its proper divisors (505327).

2526605 is an equidigital number, since it uses as much as digits as its factorization.

2526605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505326.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2526605 is about 1589.5298046907. The cubic root of 2526605 is about 136.2006302068.

The spelling of 2526605 in words is "two million, five hundred twenty-six thousand, six hundred five".