55105030 has 16 divisors (see below), whose sum is σ = 99273600. Its totient is φ = 22023232.

The previous prime is 55105027. The next prime is 55105031. The reversal of 55105030 is 3050155.

It is a junction number, because it is equal to n+sod(n) for n = 55104989 and 55105007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105031) 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 7 ways as a sum of consecutive naturals, for example, 21771 + ... + 24169.

It is an arithmetic number, because the mean of its divisors is an integer number (6204600).

Almost surely, 2^55105030 is an apocalyptic number.

55105030 is a deficient number, since it is larger than the sum of its proper divisors (44168570).

55105030 is a wasteful number, since it uses less digits than its factorization.

55105030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 55105030 is about 7423.2762308835. The cubic root of 55105030 is about 380.5371673578.

Adding to 55105030 its reverse (3050155), we get a palindrome (58155185).

The spelling of 55105030 in words is "fifty-five million, one hundred five thousand, thirty".