56129285 has 4 divisors (see below), whose sum is σ = 67355148. Its totient is φ = 44903424.

The previous prime is 56129273. The next prime is 56129299. The reversal of 56129285 is 58292165.

56129285 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 an emirpimes, since its reverse is a distinct semiprime: 58292165 = 5 ⋅11658433.

It can be written as a sum of positive squares in 2 ways, for example, as 24780484 + 31348801 = 4978^2 + 5599^2 .

It is a cyclic number.

It is not a de Polignac number, because 56129285 - 2⁶ = 56129221 is a prime.

It is a super-2 number, since 2×56129285² = 6300993269222450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5612924 + ... + 5612933.

It is an arithmetic number, because the mean of its divisors is an integer number (16838787).

Almost surely, 2^56129285 is an apocalyptic number.

It is an amenable number.

56129285 is a deficient number, since it is larger than the sum of its proper divisors (11225863).

56129285 is a wasteful number, since it uses less digits than its factorization.

56129285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11225862.

The product of its digits is 43200, while the sum is 38.

The square root of 56129285 is about 7491.9480110316. The cubic root of 56129285 is about 382.8804308769.

The spelling of 56129285 in words is "fifty-six million, one hundred twenty-nine thousand, two hundred eighty-five".