56000015 has 16 divisors (see below), whose sum is σ = 70087680. Its totient is φ = 42900480.

The previous prime is 56000003. The next prime is 56000029. The reversal of 56000015 is 51000065.

It is not a de Polignac number, because 56000015 - 2¹⁰ = 55998991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55999957 and 56000002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16895 + ... + 19935.

It is an arithmetic number, because the mean of its divisors is an integer number (4380480).

Almost surely, 2^56000015 is an apocalyptic number.

56000015 is a deficient number, since it is larger than the sum of its proper divisors (14087665).

56000015 is a wasteful number, since it uses less digits than its factorization.

56000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202.

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

The square root of 56000015 is about 7483.3157757775. The cubic root of 56000015 is about 382.5862707140.

The spelling of 56000015 in words is "fifty-six million, fifteen", and thus it is an aban number and an uban number.