56015 has 8 divisors (see below), whose sum is σ = 71280. Its totient is φ = 42112.

The previous prime is 56009. The next prime is 56039. The reversal of 56015 is 51065.

56015 = T₁₉ + T₂₀ + ... + T₆₉.

56015 is nontrivially palindromic in base 9.

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

It is a cyclic number.

It is not a de Polignac number, because 56015 - 2¹⁴ = 39631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a plaindrome in base 6.

It is a nialpdrome in base 7.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 55984 and 56002.

It is a congruent number.

It is an unprimeable number.

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, 245 + ... + 414.

It is an arithmetic number, because the mean of its divisors is an integer number (8910).

2⁵⁶⁰¹⁵ is an apocalyptic number.

56015 is a deficient number, since it is larger than the sum of its proper divisors (15265).

56015 is a wasteful number, since it uses less digits than its factorization.

56015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 56015 is about 236.6748824865. The cubic root of 56015 is about 38.2620392990.

Adding to 56015 its product of nonzero digits (150), we get a palindrome (56165).

Subtracting from 56015 its reverse (51065), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 560 and 15, that added together give a palindrome (575).

The spelling of 56015 in words is "fifty-six thousand, fifteen".