56716249 has 2 divisors, whose sum is σ = 56716250. Its totient is φ = 56716248.

The previous prime is 56716223. The next prime is 56716277. The reversal of 56716249 is 94261765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 12027024 = 6685^2 + 3468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56716249 is a prime.

It is a Chen prime.

It is equal to p_3378568 and since 56716249 and 3378568 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (56716279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28358124 + 28358125.

It is an arithmetic number, because the mean of its divisors is an integer number (28358125).

Almost surely, 2^56716249 is an apocalyptic number.

It is an amenable number.

56716249 is a deficient number, since it is larger than the sum of its proper divisors (1).

56716249 is an equidigital number, since it uses as much as digits as its factorization.

56716249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 56716249 is about 7531.0191209424. The cubic root of 56716249 is about 384.2104446346.

It can be divided in two parts, 56716 and 249, that added together give a palindrome (56965).

The spelling of 56716249 in words is "fifty-six million, seven hundred sixteen thousand, two hundred forty-nine".