56866406 has 4 divisors (see below), whose sum is σ = 85299612. Its totient is φ = 28433202.

The previous prime is 56866393. The next prime is 56866423. The reversal of 56866406 is 60466865.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14216600 + ... + 14216603.

It is an arithmetic number, because the mean of its divisors is an integer number (21324903).

Almost surely, 2^56866406 is an apocalyptic number.

56866406 is a deficient number, since it is larger than the sum of its proper divisors (28433206).

56866406 is a wasteful number, since it uses less digits than its factorization.

56866406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28433205.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 56866406 is about 7540.9817663219. The cubic root of 56866406 is about 384.5492132131.

The spelling of 56866406 in words is "fifty-six million, eight hundred sixty-six thousand, four hundred six".