55105310 has 16 divisors (see below), whose sum is σ = 106819776. Its totient is φ = 20346528.

The previous prime is 55105261. The next prime is 55105331. The reversal of 55105310 is 1350155.

It is a happy number.

It is a super-2 number, since 2×55105310² = 6073190380392200, which contains 22 as substring.

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, 211814 + ... + 212073.

It is an arithmetic number, because the mean of its divisors is an integer number (6676236).

Almost surely, 2^55105310 is an apocalyptic number.

55105310 is a deficient number, since it is larger than the sum of its proper divisors (51714466).

55105310 is a wasteful number, since it uses less digits than its factorization.

55105310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423907.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 55105310 is about 7423.2950904568. The cubic root of 55105310 is about 380.5378118859.

Adding to 55105310 its reverse (1350155), we get a palindrome (56455465).

The spelling of 55105310 in words is "fifty-five million, one hundred five thousand, three hundred ten".