56565210565215 has 48 divisors (see below), whose sum is σ = 106960795733376. Its totient is φ = 27425268216000.

The previous prime is 56565210565183. The next prime is 56565210565217. The reversal of 56565210565215 is 51256501256565.

56565210565215 is a `hidden beast` number, since 5 + 6 + 5 + 6 + 5 + 2 + 105 + 6 + 521 + 5 = 666.

56565210565215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56565210565215 - 2⁵ = 56565210565183 is a prime.

It is a super-2 number, since 2×56565210565215² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56565210565217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50984140 + ... + 52081790.

It is an arithmetic number, because the mean of its divisors is an integer number (2228349911112).

Almost surely, 2^{56565210565215} is an apocalyptic number.

56565210565215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56565210565215 is a deficient number, since it is larger than the sum of its proper divisors (50395585168161).

56565210565215 is a wasteful number, since it uses less digits than its factorization.

56565210565215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201780 (or 1201777 counting only the distinct ones).

The product of its (nonzero) digits is 13500000, while the sum is 54.

The spelling of 56565210565215 in words is "fifty-six trillion, five hundred sixty-five billion, two hundred ten million, five hundred sixty-five thousand, two hundred fifteen".