56107778 has 12 divisors (see below), whose sum is σ = 84714630. Its totient is φ = 27870720.

The previous prime is 56107771. The next prime is 56107783. The reversal of 56107778 is 87770165.

It can be written as a sum of positive squares in only one way, i.e., 49942489 + 6165289 = 7067^2 + 2483^2 .

It is not an unprimeable number, because it can be changed into a prime (56107771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72578 + ... + 73346.

Almost surely, 2^56107778 is an apocalyptic number.

56107778 is a deficient number, since it is larger than the sum of its proper divisors (28606852).

56107778 is an equidigital number, since it uses as much as digits as its factorization.

56107778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 56107778 is about 7490.5125325307. The cubic root of 56107778 is about 382.8315219969.

The spelling of 56107778 in words is "fifty-six million, one hundred seven thousand, seven hundred seventy-eight".