56015243 has 2 divisors, whose sum is σ = 56015244. Its totient is φ = 56015242.

The previous prime is 56015159. The next prime is 56015257. The reversal of 56015243 is 34251065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56015243 - 2¹⁰ = 56014219 is a prime.

It is not a weakly prime, because it can be changed into another prime (56015273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28007621 + 28007622.

It is an arithmetic number, because the mean of its divisors is an integer number (28007622).

Almost surely, 2^56015243 is an apocalyptic number.

56015243 is a deficient number, since it is larger than the sum of its proper divisors (1).

56015243 is an equidigital number, since it uses as much as digits as its factorization.

56015243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56015243 is about 7484.3331700292. Note that the first 3 decimals coincide. The cubic root of 56015243 is about 382.6209462745.

The spelling of 56015243 in words is "fifty-six million, fifteen thousand, two hundred forty-three".