55105704 has 128 divisors (see below), whose sum is σ = 166320000. Its totient is φ = 16837632.

The previous prime is 55105703. The next prime is 55105717. The reversal of 55105704 is 40750155.

It is a super-2 number, since 2×55105704² = 6073277226671232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105703) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 157722 + ... + 158070.

It is an arithmetic number, because the mean of its divisors is an integer number (1299375).

Almost surely, 2^55105704 is an apocalyptic number.

55105704 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55105704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83160000).

55105704 is an abundant number, since it is smaller than the sum of its proper divisors (111214296).

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

55105704 is a wasteful number, since it uses less digits than its factorization.

55105704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 55105704 is about 7423.3216284895. The cubic root of 55105704 is about 380.5387188254.

Adding to 55105704 its reverse (40750155), we get a palindrome (95855859).

The spelling of 55105704 in words is "fifty-five million, one hundred five thousand, seven hundred four".