56481 has 8 divisors (see below), whose sum is σ = 76704. Its totient is φ = 36960.

The previous prime is 56479. The next prime is 56489. The reversal of 56481 is 18465.

56481 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56481 - 2¹ = 56479 is a prime.

It is a super-2 number, since 2×56481² = 6380206722, which contains 22 as substring.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 56481.

It is not an unprimeable number, because it can be changed into a prime (56489) 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, 61 + ... + 341.

It is an arithmetic number, because the mean of its divisors is an integer number (9588).

2⁵⁶⁴⁸¹ is an apocalyptic number.

It is an amenable number.

56481 is a deficient number, since it is larger than the sum of its proper divisors (20223).

56481 is a wasteful number, since it uses less digits than its factorization.

56481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351.

The product of its digits is 960, while the sum is 24.

The square root of 56481 is about 237.6573163191. The cubic root of 56481 is about 38.3678496087.

The spelling of 56481 in words is "fifty-six thousand, four hundred eighty-one".