5200813 has 4 divisors (see below), whose sum is σ = 5474560. Its totient is φ = 4927068.

The previous prime is 5200801. The next prime is 5200843. The reversal of 5200813 is 3180025.

It is a happy number.

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 5200813 - 2⁵ = 5200781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 273727 = 5200813 / (5 + 2 + 0 + 0 + 8 + 1 + 3).

It is a Duffinian number.

5200813 is a modest number, since divided by 813 gives 52 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5200843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136845 + ... + 136882.

It is an arithmetic number, because the mean of its divisors is an integer number (1368640).

Almost surely, 2^5200813 is an apocalyptic number.

It is an amenable number.

5200813 is a deficient number, since it is larger than the sum of its proper divisors (273747).

5200813 is a wasteful number, since it uses less digits than its factorization.

5200813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273746.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5200813 is about 2280.5291052736. The cubic root of 5200813 is about 173.2568494745.

Adding to 5200813 its reverse (3180025), we get a palindrome (8380838).

The spelling of 5200813 in words is "five million, two hundred thousand, eight hundred thirteen".