56011646 has 4 divisors (see below), whose sum is σ = 84017472. Its totient is φ = 28005822.

The previous prime is 56011621. The next prime is 56011661. The reversal of 56011646 is 64611065.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14002910 + ... + 14002913.

It is an arithmetic number, because the mean of its divisors is an integer number (21004368).

Almost surely, 2^56011646 is an apocalyptic number.

56011646 is a deficient number, since it is larger than the sum of its proper divisors (28005826).

56011646 is a wasteful number, since it uses less digits than its factorization.

56011646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28005825.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 56011646 is about 7484.0928642020. The cubic root of 56011646 is about 382.6127561407.

The spelling of 56011646 in words is "fifty-six million, eleven thousand, six hundred forty-six".