56390 has 8 divisors (see below), whose sum is σ = 101520. Its totient is φ = 22552.

The previous prime is 56383. The next prime is 56393. The reversal of 56390 is 9365.

56390 is digitally balanced in base 2, because in such base 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 a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 56390.

It is not an unprimeable number, because it can be changed into a prime (56393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810 + ... + 2829.

It is an arithmetic number, because the mean of its divisors is an integer number (12690).

2⁵⁶³⁹⁰ is an apocalyptic number.

56390 is a deficient number, since it is larger than the sum of its proper divisors (45130).

56390 is a wasteful number, since it uses less digits than its factorization.

56390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 56390 is about 237.4657870094. The cubic root of 56390 is about 38.3472329346.

The spelling of 56390 in words is "fifty-six thousand, three hundred ninety".