56689760 has 48 divisors (see below), whose sum is σ = 134946000. Its totient is φ = 22503936.

The previous prime is 56689753. The next prime is 56689769. The reversal of 56689760 is 6798665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56689769) 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, 20966 + ... + 23514.

It is an arithmetic number, because the mean of its divisors is an integer number (2811375).

Almost surely, 2^56689760 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 56689760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67473000).

56689760 is an abundant number, since it is smaller than the sum of its proper divisors (78256240).

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

56689760 is a wasteful number, since it uses less digits than its factorization.

56689760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 56689760 is about 7529.2602558286. The cubic root of 56689760 is about 384.1506208893.

The spelling of 56689760 in words is "fifty-six million, six hundred eighty-nine thousand, seven hundred sixty".