56045 has 8 divisors (see below), whose sum is σ = 73440. Its totient is φ = 40720.

The previous prime is 56041. The next prime is 56053. The reversal of 56045 is 54065.

56045 = T₄₁ + T₄₂ + ... + T₇₃.

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

It is not a de Polignac number, because 56045 - 2² = 56041 is a prime.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455 + ... + 564.

It is an arithmetic number, because the mean of its divisors is an integer number (9180).

2⁵⁶⁰⁴⁵ is an apocalyptic number.

56045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56045 is a deficient number, since it is larger than the sum of its proper divisors (17395).

56045 is a wasteful number, since it uses less digits than its factorization.

56045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 56045 is about 236.7382520844. The cubic root of 56045 is about 38.2688687573.

Adding to 56045 its sum of digits (20), we get a palindrome (56065).

It can be divided in two parts, 560 and 45, that multiplied together give a triangular number (25200 = T₂₂₄).

The spelling of 56045 in words is "fifty-six thousand, forty-five".