56803013 has 2 divisors, whose sum is σ = 56803014. Its totient is φ = 56803012.

The previous prime is 56803007. The next prime is 56803039. The reversal of 56803013 is 31030865.

It is an a-pointer prime, because the next prime (56803039) can be obtained adding 56803013 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51595489 + 5207524 = 7183^2 + 2282^2 .

It is a cyclic number.

It is not a de Polignac number, because 56803013 - 2⁴ = 56802997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56803063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28401506 + 28401507.

It is an arithmetic number, because the mean of its divisors is an integer number (28401507).

Almost surely, 2^56803013 is an apocalyptic number.

It is an amenable number.

56803013 is a deficient number, since it is larger than the sum of its proper divisors (1).

56803013 is an equidigital number, since it uses as much as digits as its factorization.

56803013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 56803013 is about 7536.7773617110. Note that the first 3 decimals coincide. The cubic root of 56803013 is about 384.4062653573.

Adding to 56803013 its reverse (31030865), we get a palindrome (87833878).

The spelling of 56803013 in words is "fifty-six million, eight hundred three thousand, thirteen".