56305616 has 20 divisors (see below), whose sum is σ = 109524612. Its totient is φ = 28041216.

The previous prime is 56305603. The next prime is 56305621. The reversal of 56305616 is 61650365.

It can be written as a sum of positive squares in 2 ways, for example, as 55950400 + 355216 = 7480^2 + 596^2 .

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735 + ... + 10958.

Almost surely, 2^56305616 is an apocalyptic number.

It is an amenable number.

56305616 is a deficient number, since it is larger than the sum of its proper divisors (53218996).

56305616 is a wasteful number, since it uses less digits than its factorization.

56305616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13958 (or 13952 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 56305616 is about 7503.7068173004. The cubic root of 56305616 is about 383.2809533134.

The spelling of 56305616 in words is "fifty-six million, three hundred five thousand, six hundred sixteen".