56349913 has 2 divisors, whose sum is σ = 56349914. Its totient is φ = 56349912.

The previous prime is 56349911. The next prime is 56349947. The reversal of 56349913 is 31994365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54641664 + 1708249 = 7392^2 + 1307^2 .

It is a cyclic number.

It is not a de Polignac number, because 56349913 - 2¹ = 56349911 is a prime.

Together with 56349911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56349911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28174956 + 28174957.

It is an arithmetic number, because the mean of its divisors is an integer number (28174957).

Almost surely, 2^56349913 is an apocalyptic number.

It is an amenable number.

56349913 is a deficient number, since it is larger than the sum of its proper divisors (1).

56349913 is an equidigital number, since it uses as much as digits as its factorization.

56349913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 40.

The square root of 56349913 is about 7506.6579114810. The cubic root of 56349913 is about 383.3814391214.

The spelling of 56349913 in words is "fifty-six million, three hundred forty-nine thousand, nine hundred thirteen".