55105105 has 8 divisors (see below), whose sum is σ = 72137664. Its totient is φ = 40076400.

The previous prime is 55105097. The next prime is 55105147. The reversal of 55105105 is 50150155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55105105 - 2³ = 55105097 is a prime.

It is a super-2 number, since 2×55105105² = 6073145194122050, which contains 22 as substring.

It is a Duffinian 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, 500901 + ... + 501010.

It is an arithmetic number, because the mean of its divisors is an integer number (9017208).

Almost surely, 2^55105105 is an apocalyptic number.

55105105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55105105 is a deficient number, since it is larger than the sum of its proper divisors (17032559).

55105105 is a wasteful number, since it uses less digits than its factorization.

55105105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001927.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 55105105 is about 7423.2812825596. The cubic root of 55105105 is about 380.5373399995.

The spelling of 55105105 in words is "fifty-five million, one hundred five thousand, one hundred five".