56085121 has 3 divisors (see below), whose sum is σ = 56092611. Its totient is φ = 56077632.

The previous prime is 56085119. The next prime is 56085137. The reversal of 56085121 is 12158065.

The square root of 56085121 is 7489.

It is a perfect power (a square), and thus also a powerful number.

56085121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 28206721 + 27878400 = 5311^2 + 5280^2 .

It is not a de Polignac number, because 56085121 - 2¹ = 56085119 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56085121.

It is not an unprimeable number, because it can be changed into a prime (56085151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3745 + ... + 11233.

It is an arithmetic number, because the mean of its divisors is an integer number (18697537).

Almost surely, 2^56085121 is an apocalyptic number.

56085121 is the 7489-th square number.

56085121 is the 3745-th centered octagonal number.

It is an amenable number.

56085121 is a deficient number, since it is larger than the sum of its proper divisors (7490).

56085121 is an frugal number, since it uses more digits than its factorization.

56085121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14978 (or 7489 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The cubic root of 56085121 is about 382.7799843914.

The spelling of 56085121 in words is "fifty-six million, eighty-five thousand, one hundred twenty-one".