55106670 has 64 divisors (see below), whose sum is σ = 138438720. Its totient is φ = 14020608.

The previous prime is 55106663. The next prime is 55106671. The reversal of 55106670 is 7660155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55106671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84064 + ... + 84716.

It is an arithmetic number, because the mean of its divisors is an integer number (2163105).

Almost surely, 2^55106670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55106670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69219360).

55106670 is an abundant number, since it is smaller than the sum of its proper divisors (83332050).

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

55106670 is a wasteful number, since it uses less digits than its factorization.

55106670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 55106670 is about 7423.3866934170. The cubic root of 55106670 is about 380.5409424201.

The spelling of 55106670 in words is "fifty-five million, one hundred six thousand, six hundred seventy".