56605361 has 8 divisors (see below), whose sum is σ = 58725480. Its totient is φ = 54496512.

The previous prime is 56605327. The next prime is 56605363. The reversal of 56605361 is 16350665.

It can be written as a sum of positive squares in 4 ways, for example, as 24750625 + 31854736 = 4975^2 + 5644^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56605361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56605363) 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 7 ways as a sum of consecutive naturals, for example, 8201 + ... + 13433.

It is an arithmetic number, because the mean of its divisors is an integer number (7340685).

Almost surely, 2^56605361 is an apocalyptic number.

It is an amenable number.

56605361 is a deficient number, since it is larger than the sum of its proper divisors (2120119).

56605361 is a wasteful number, since it uses less digits than its factorization.

56605361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635.

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

The square root of 56605361 is about 7523.6534343363. The cubic root of 56605361 is about 383.9598866699.

The spelling of 56605361 in words is "fifty-six million, six hundred five thousand, three hundred sixty-one".