| Base | Representation |
|---|---|
| bin | 1101001111110… |
| … | …1011101101100 |
| 3 | 10212112221200010 |
| 4 | 3103331131230 |
| 5 | 103211023030 |
| 6 | 5302533220 |
| 7 | 1243200402 |
| oct | 323753554 |
| 9 | 125487603 |
| 10 | 55564140 |
| 11 | 29401185 |
| 12 | 16737210 |
| 13 | b685bb8 |
| 14 | 7545472 |
| 15 | 4d286b0 |
| hex | 34fd76c |
55564140 has 96 divisors (see below), whose sum is σ = 161009856. Its totient is φ = 14310400.
The previous prime is 55564139. The next prime is 55564141. The reversal of 55564140 is 4146555.
55564140 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (55564139) and next prime (55564141).
It is a Harshad number since it is a multiple of its sum of digits (30).
55564140 is strictly pandigital in base 9.
It is a junction number, because it is equal to n+sod(n) for n = 55564098 and 55564107.
It is not an unprimeable number, because it can be changed into a prime (55564141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321094 + ... + 321266.
It is an arithmetic number, because the mean of its divisors is an integer number (1677186).
Almost surely, 255564140 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 55564140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80504928).
55564140 is an abundant number, since it is smaller than the sum of its proper divisors (105445716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
55564140 is a wasteful number, since it uses less digits than its factorization.
55564140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 339 (or 337 counting only the distinct ones).
The product of its (nonzero) digits is 12000, while the sum is 30.
The square root of 55564140 is about 7454.1357647953. The cubic root of 55564140 is about 381.5910666439.
The spelling of 55564140 in words is "fifty-five million, five hundred sixty-four thousand, one hundred forty".
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