56866135 has 4 divisors (see below), whose sum is σ = 68239368. Its totient is φ = 45492904.

The previous prime is 56866111. The next prime is 56866157. The reversal of 56866135 is 53166865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53166865 = 5 ⋅10633373.

It is a cyclic number.

It is not a de Polignac number, because 56866135 - 2⁹ = 56865623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5686609 + ... + 5686618.

It is an arithmetic number, because the mean of its divisors is an integer number (17059842).

Almost surely, 2^56866135 is an apocalyptic number.

56866135 is a deficient number, since it is larger than the sum of its proper divisors (11373233).

56866135 is a wasteful number, since it uses less digits than its factorization.

56866135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11373232.

The product of its digits is 129600, while the sum is 40.

The square root of 56866135 is about 7540.9637978179. The cubic root of 56866135 is about 384.5486023486.

The spelling of 56866135 in words is "fifty-six million, eight hundred sixty-six thousand, one hundred thirty-five".