56805280 has 96 divisors (see below), whose sum is σ = 155869056. Its totient is φ = 19160064.

The previous prime is 56805277. The next prime is 56805293. The reversal of 56805280 is 8250865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74662 + ... + 75418.

It is an arithmetic number, because the mean of its divisors is an integer number (1623636).

Almost surely, 2^56805280 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 56805280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77934528).

56805280 is an abundant number, since it is smaller than the sum of its proper divisors (99063776).

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

56805280 is a wasteful number, since it uses less digits than its factorization.

56805280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 56805280 is about 7536.9277560555. The cubic root of 56805280 is about 384.4113791553.

The spelling of 56805280 in words is "fifty-six million, eight hundred five thousand, two hundred eighty".