56727808 has 72 divisors (see below), whose sum is σ = 119537208. Its totient is φ = 26836992.

The previous prime is 56727791. The next prime is 56727809. The reversal of 56727808 is 80872765.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8952064 + 47775744 = 2992^2 + 6912^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56727809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501960 + ... + 502072.

It is an arithmetic number, because the mean of its divisors is an integer number (1660239).

Almost surely, 2^56727808 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 56727808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59768604).

56727808 is an abundant number, since it is smaller than the sum of its proper divisors (62809400).

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

56727808 is a wasteful number, since it uses less digits than its factorization.

56727808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 56727808 is about 7531.7865078612. The cubic root of 56727808 is about 384.2365440737.

The spelling of 56727808 in words is "fifty-six million, seven hundred twenty-seven thousand, eight hundred eight".