56611545 has 16 divisors (see below), whose sum is σ = 95346240. Its totient is φ = 28603584.

The previous prime is 56611543. The next prime is 56611589. The reversal of 56611545 is 54511665.

It is not a de Polignac number, because 56611545 - 2¹ = 56611543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56611543) 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 15 ways as a sum of consecutive naturals, for example, 99034 + ... + 99603.

It is an arithmetic number, because the mean of its divisors is an integer number (5959140).

Almost surely, 2^56611545 is an apocalyptic number.

It is an amenable number.

56611545 is a deficient number, since it is larger than the sum of its proper divisors (38734695).

56611545 is a wasteful number, since it uses less digits than its factorization.

56611545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198664.

The product of its digits is 18000, while the sum is 33.

The square root of 56611545 is about 7524.0643936638. The cubic root of 56611545 is about 383.9738683932.

The spelling of 56611545 in words is "fifty-six million, six hundred eleven thousand, five hundred forty-five".