56047684 has 72 divisors (see below), whose sum is σ = 125483904. Its totient is φ = 21436800.

The previous prime is 56047681. The next prime is 56047687. The reversal of 56047684 is 48674065.

It is an interprime number because it is at equal distance from previous prime (56047681) and next prime (56047687).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56047681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240432 + ... + 240664.

It is an arithmetic number, because the mean of its divisors is an integer number (1742832).

Almost surely, 2^56047684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56047684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62741952).

56047684 is an abundant number, since it is smaller than the sum of its proper divisors (69436220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56047684 is a wasteful number, since it uses less digits than its factorization.

56047684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 56047684 is about 7486.5001168770. The cubic root of 56047684 is about 382.6947964742.

The spelling of 56047684 in words is "fifty-six million, forty-seven thousand, six hundred eighty-four".