55670 has 16 divisors (see below), whose sum is σ = 105840. Its totient is φ = 21024.

The previous prime is 55667. The next prime is 55673. The reversal of 55670 is 7655.

It is an interprime number because it is at equal distance from previous prime (55667) and next prime (55673).

It is an Ulam number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55673) 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, 44 + ... + 336.

It is an arithmetic number, because the mean of its divisors is an integer number (6615).

2⁵⁵⁶⁷⁰ is an apocalyptic number.

55670 is a deficient number, since it is larger than the sum of its proper divisors (50170).

55670 is a wasteful number, since it uses less digits than its factorization.

55670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 55670 is about 235.9449088241. The cubic root of 55670 is about 38.1833246846.

It can be divided in two parts, 556 and 70, that added together give a palindrome (626).

The spelling of 55670 in words is "fifty-five thousand, six hundred seventy".