56663653 has 4 divisors (see below), whose sum is σ = 56798668. Its totient is φ = 56528640.

The previous prime is 56663647. The next prime is 56663683. The reversal of 56663653 is 35636665.

56663653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35636665 = 5 ⋅7127333.

It can be written as a sum of positive squares in 2 ways, for example, as 3912484 + 52751169 = 1978^2 + 7263^2 .

It is a cyclic number.

It is not a de Polignac number, because 56663653 - 2⁹ = 56663141 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 (56663683) 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 3 ways as a sum of consecutive naturals, for example, 66876 + ... + 67717.

It is an arithmetic number, because the mean of its divisors is an integer number (14199667).

Almost surely, 2^56663653 is an apocalyptic number.

It is an amenable number.

56663653 is a deficient number, since it is larger than the sum of its proper divisors (135015).

56663653 is a wasteful number, since it uses less digits than its factorization.

56663653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135014.

The product of its digits is 291600, while the sum is 40.

The square root of 56663653 is about 7527.5263533248. The cubic root of 56663653 is about 384.0916416299.

The spelling of 56663653 in words is "fifty-six million, six hundred sixty-three thousand, six hundred fifty-three".