56276815 has 16 divisors (see below), whose sum is σ = 79267392. Its totient is φ = 37545984.

The previous prime is 56276797. The next prime is 56276819. The reversal of 56276815 is 51867265.

It is a de Polignac number, because none of the positive numbers 2^k-56276815 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56276819) 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, 20434 + ... + 23023.

It is an arithmetic number, because the mean of its divisors is an integer number (4954212).

Almost surely, 2^56276815 is an apocalyptic number.

56276815 is a deficient number, since it is larger than the sum of its proper divisors (22990577).

56276815 is a wasteful number, since it uses less digits than its factorization.

56276815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43506.

The product of its digits is 100800, while the sum is 40.

The square root of 56276815 is about 7501.7874536673. The cubic root of 56276815 is about 383.2155912280.

It can be divided in two parts, 562 and 76815, that added together give a palindrome (77377).

The spelling of 56276815 in words is "fifty-six million, two hundred seventy-six thousand, eight hundred fifteen".