56777243 has 6 divisors (see below), whose sum is σ = 58130244. Its totient is φ = 55455036.

The previous prime is 56777239. The next prime is 56777291. The reversal of 56777243 is 34277765.

56777243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56777243 - 2² = 56777239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56777243.

It is not an unprimeable number, because it can be changed into a prime (56777143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13505 + ... + 17202.

It is an arithmetic number, because the mean of its divisors is an integer number (9688374).

Almost surely, 2^56777243 is an apocalyptic number.

56777243 is a deficient number, since it is larger than the sum of its proper divisors (1353001).

56777243 is an equidigital number, since it uses as much as digits as its factorization.

56777243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30793 (or 30750 counting only the distinct ones).

The product of its digits is 246960, while the sum is 41.

The square root of 56777243 is about 7535.0675511239. The cubic root of 56777243 is about 384.3481249679.

The spelling of 56777243 in words is "fifty-six million, seven hundred seventy-seven thousand, two hundred forty-three".