56861306 has 8 divisors (see below), whose sum is σ = 86460564. Its totient is φ = 28041120.

The previous prime is 56861293. The next prime is 56861317. The reversal of 56861306 is 60316865.

It can be written as a sum of positive squares in 2 ways, for example, as 53217025 + 3644281 = 7295^2 + 1909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×56861306³ (a number of 24 digits) contains 333 as substring.

It is a Curzon 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, 194585 + ... + 194876.

Almost surely, 2^56861306 is an apocalyptic number.

56861306 is a deficient number, since it is larger than the sum of its proper divisors (29599258).

56861306 is a wasteful number, since it uses less digits than its factorization.

56861306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389536.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 56861306 is about 7540.6436064835. The cubic root of 56861306 is about 384.5377169141.

The spelling of 56861306 in words is "fifty-six million, eight hundred sixty-one thousand, three hundred six".