56012645 has 8 divisors (see below), whose sum is σ = 72385656. Its totient is φ = 41363136.

The previous prime is 56012639. The next prime is 56012647. The reversal of 56012645 is 54621065.

It can be written as a sum of positive squares in 4 ways, for example, as 1119364 + 54893281 = 1058^2 + 7409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56012645 - 2⁶ = 56012581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56012647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430802 + ... + 430931.

It is an arithmetic number, because the mean of its divisors is an integer number (9048207).

Almost surely, 2^56012645 is an apocalyptic number.

It is an amenable number.

56012645 is a deficient number, since it is larger than the sum of its proper divisors (16373011).

56012645 is a wasteful number, since it uses less digits than its factorization.

56012645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861751.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 56012645 is about 7484.1596054601. The cubic root of 56012645 is about 382.6150308335.

The spelling of 56012645 in words is "fifty-six million, twelve thousand, six hundred forty-five".