55105430 has 16 divisors (see below), whose sum is σ = 99824400. Its totient is φ = 21901152.

The previous prime is 55105429. The next prime is 55105441. The reversal of 55105430 is 3450155.

It is a junction number, because it is equal to n+sod(n) for n = 55105396 and 55105405.

It is a congruent number.

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, 15980 + ... + 19119.

It is an arithmetic number, because the mean of its divisors is an integer number (6239025).

Almost surely, 2^55105430 is an apocalyptic number.

55105430 is a deficient number, since it is larger than the sum of its proper divisors (44718970).

55105430 is a wasteful number, since it uses less digits than its factorization.

55105430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35263.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55105430 is about 7423.3031731164. The cubic root of 55105430 is about 380.5380881116.

Adding to 55105430 its reverse (3450155), we get a palindrome (58555585).

The spelling of 55105430 in words is "fifty-five million, one hundred five thousand, four hundred thirty".