56105250165 has 12 divisors (see below), whose sum is σ = 97249100364. Its totient is φ = 29922800064.

The previous prime is 56105250163. The next prime is 56105250191.

56105250165 is a `hidden beast` number, since 5 + 610 + 5 + 25 + 0 + 16 + 5 = 666.

56105250165 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 22340085156 + 33765165009 = 149466^2 + 183753^2 .

It is not a de Polignac number, because 56105250165 - 2¹ = 56105250163 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56105250163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623391624 + ... + 623391713.

It is an arithmetic number, because the mean of its divisors is an integer number (8104091697).

Almost surely, 2^56105250165 is an apocalyptic number.

It is an amenable number.

56105250165 is a deficient number, since it is larger than the sum of its proper divisors (41143850199).

56105250165 is a wasteful number, since it uses less digits than its factorization.

56105250165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246783348 (or 1246783345 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The spelling of 56105250165 in words is "fifty-six billion, one hundred five million, two hundred fifty thousand, one hundred sixty-five".