56045545 has 8 divisors (see below), whose sum is σ = 69573960. Its totient is φ = 43290240.

The previous prime is 56045543. The next prime is 56045557. The reversal of 56045545 is 54554065.

It can be written as a sum of positive squares in 4 ways, for example, as 2111209 + 53934336 = 1453^2 + 7344^2 .

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

It is not a de Polignac number, because 56045545 - 2¹ = 56045543 is a prime.

It is a super-2 number, since 2×56045545² = 6282206228694050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56045545.

It is not an unprimeable number, because it can be changed into a prime (56045543) 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, 193116 + ... + 193405.

It is an arithmetic number, because the mean of its divisors is an integer number (8696745).

Almost surely, 2^56045545 is an apocalyptic number.

It is an amenable number.

56045545 is a deficient number, since it is larger than the sum of its proper divisors (13528415).

56045545 is a wasteful number, since it uses less digits than its factorization.

56045545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386555.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 56045545 is about 7486.3572583734. The cubic root of 56045545 is about 382.6899280329.

The spelling of 56045545 in words is "fifty-six million, forty-five thousand, five hundred forty-five".