56780 has 24 divisors (see below), whose sum is σ = 127008. Its totient is φ = 21248.

The previous prime is 56779. The next prime is 56783. The reversal of 56780 is 8765.

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (56783) 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, 257 + ... + 423.

It is an arithmetic number, because the mean of its divisors is an integer number (5292).

2⁵⁶⁷⁸⁰ 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 56780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63504).

56780 is an abundant number, since it is smaller than the sum of its proper divisors (70228).

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

56780 is a wasteful number, since it uses less digits than its factorization.

56780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 56780 is about 238.2855429941. The cubic root of 56780 is about 38.4354345950.

The spelling of 56780 in words is "fifty-six thousand, seven hundred eighty".