56118247 has 2 divisors, whose sum is σ = 56118248. Its totient is φ = 56118246.

The previous prime is 56118221. The next prime is 56118253. The reversal of 56118247 is 74281165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56118247 - 2⁷ = 56118119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56118287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28059123 + 28059124.

It is an arithmetic number, because the mean of its divisors is an integer number (28059124).

Almost surely, 2^56118247 is an apocalyptic number.

56118247 is a deficient number, since it is larger than the sum of its proper divisors (1).

56118247 is an equidigital number, since it uses as much as digits as its factorization.

56118247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 34.

The square root of 56118247 is about 7491.2113172704. The cubic root of 56118247 is about 382.8553310189.

It can be divided in two parts, 56118 and 247, that added together give a palindrome (56365).

The spelling of 56118247 in words is "fifty-six million, one hundred eighteen thousand, two hundred forty-seven".