56860649 has 4 divisors (see below), whose sum is σ = 57639636. Its totient is φ = 56081664.

The previous prime is 56860637. The next prime is 56860667. The reversal of 56860649 is 94606865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94606865 = 5 ⋅18921373.

It can be written as a sum of positive squares in 2 ways, for example, as 36385024 + 20475625 = 6032^2 + 4525^2 .

It is a cyclic number.

It is not a de Polignac number, because 56860649 - 2²⁰ = 55812073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56860849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389384 + ... + 389529.

It is an arithmetic number, because the mean of its divisors is an integer number (14409909).

Almost surely, 2^56860649 is an apocalyptic number.

It is an amenable number.

56860649 is a deficient number, since it is larger than the sum of its proper divisors (778987).

56860649 is an equidigital number, since it uses as much as digits as its factorization.

56860649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778986.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 56860649 is about 7540.6000424369. The cubic root of 56860649 is about 384.5362358703.

The spelling of 56860649 in words is "fifty-six million, eight hundred sixty thousand, six hundred forty-nine".