56805880 has 32 divisors (see below), whose sum is σ = 128129040. Its totient is φ = 22666240.

The previous prime is 56805871. The next prime is 56805887. The reversal of 56805880 is 8850865.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56805887) 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, 17160 + ... + 20200.

Almost surely, 2^56805880 is an apocalyptic number.

It is an amenable number.

56805880 is an abundant number, since it is smaller than the sum of its proper divisors (71323160).

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

56805880 is a wasteful number, since it uses less digits than its factorization.

56805880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519 (or 3515 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 56805880 is about 7536.9675599673. The cubic root of 56805880 is about 384.4127325859.

The spelling of 56805880 in words is "fifty-six million, eight hundred five thousand, eight hundred eighty".