5613813 has 16 divisors (see below), whose sum is σ = 8475840. Its totient is φ = 3670992.

The previous prime is 5613799. The next prime is 5613833. The reversal of 5613813 is 3183165.

It is not a de Polignac number, because 5613813 - 2¹⁸ = 5351669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

5613813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5613833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531 + ... + 3392.

It is an arithmetic number, because the mean of its divisors is an integer number (529740).

Almost surely, 2^5613813 is an apocalyptic number.

5613813 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

5613813 is a deficient number, since it is larger than the sum of its proper divisors (2862027).

5613813 is a wasteful number, since it uses less digits than its factorization.

5613813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985 (or 3979 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 5613813 is about 2369.3486446701. The cubic root of 5613813 is about 177.7266878220.

Adding to 5613813 its reverse (3183165), we get a palindrome (8796978).

The spelling of 5613813 in words is "five million, six hundred thirteen thousand, eight hundred thirteen".