56670 has 16 divisors (see below), whose sum is σ = 136080. Its totient is φ = 15104.

The previous prime is 56663. The next prime is 56671. The reversal of 56670 is 7665.

It is a super-2 number, since 2×56670² = 6422977800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56671) by changing a digit.

56670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915 + ... + 974.

It is an arithmetic number, because the mean of its divisors is an integer number (8505).

2⁵⁶⁶⁷⁰ is an apocalyptic number.

56670 is an abundant number, since it is smaller than the sum of its proper divisors (79410).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68040).

56670 is a wasteful number, since it uses less digits than its factorization.

56670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 56670 is about 238.0546155822. The cubic root of 56670 is about 38.4105982032.

It can be divided in two parts, 566 and 70, that added together give a palindrome (636).

The spelling of 56670 in words is "fifty-six thousand, six hundred seventy".