2523813 has 16 divisors (see below), whose sum is σ = 3563520. Its totient is φ = 1585584.

The previous prime is 2523791. The next prime is 2523821. The reversal of 2523813 is 3183252.

It is not a de Polignac number, because 2523813 - 2⁶ = 2523749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5220 + ... + 5682.

It is an arithmetic number, because the mean of its divisors is an integer number (222720).

2^2523813 is an apocalyptic number.

2523813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2523813 is a deficient number, since it is larger than the sum of its proper divisors (1039707).

2523813 is a wasteful number, since it uses less digits than its factorization.

2523813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568.

The product of its digits is 1440, while the sum is 24.

The square root of 2523813 is about 1588.6513147950. The cubic root of 2523813 is about 136.1504426603.

The spelling of 2523813 in words is "two million, five hundred twenty-three thousand, eight hundred thirteen".