56307613 has 2 divisors, whose sum is σ = 56307614. Its totient is φ = 56307612.

The previous prime is 56307607. The next prime is 56307617. The reversal of 56307613 is 31670365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31337604 + 24970009 = 5598^2 + 4997^2 .

It is a cyclic number.

It is not a de Polignac number, because 56307613 - 2¹⁷ = 56176541 is a prime.

It is equal to p_3355654 and since 56307613 and 3355654 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56307617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28153806 + 28153807.

It is an arithmetic number, because the mean of its divisors is an integer number (28153807).

Almost surely, 2^56307613 is an apocalyptic number.

It is an amenable number.

56307613 is a deficient number, since it is larger than the sum of its proper divisors (1).

56307613 is an equidigital number, since it uses as much as digits as its factorization.

56307613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 56307613 is about 7503.8398836862. The cubic root of 56307613 is about 383.2854845548.

Adding to 56307613 its reverse (31670365), we get a palindrome (87977978).

The spelling of 56307613 in words is "fifty-six million, three hundred seven thousand, six hundred thirteen".