55102130 has 16 divisors (see below), whose sum is σ = 99270360. Its totient is φ = 22021632.

The previous prime is 55102129. The next prime is 55102193. The reversal of 55102130 is 3120155.

It can be written as a sum of positive squares in 4 ways, for example, as 54567769 + 534361 = 7387^2 + 731^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55102099 and 55102108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17432 + ... + 20348.

Almost surely, 2^55102130 is an apocalyptic number.

55102130 is a deficient number, since it is larger than the sum of its proper divisors (44168230).

55102130 is a wasteful number, since it uses less digits than its factorization.

55102130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 55102130 is about 7423.0808967706. The cubic root of 55102130 is about 380.5304917594.

Adding to 55102130 its reverse (3120155), we get a palindrome (58222285).

The spelling of 55102130 in words is "fifty-five million, one hundred two thousand, one hundred thirty".