55075105 has 8 divisors (see below), whose sum is σ = 66172392. Its totient is φ = 44005248.

The previous prime is 55075099. The next prime is 55075123. The reversal of 55075105 is 50157055.

It can be written as a sum of positive squares in 4 ways, for example, as 10131489 + 44943616 = 3183^2 + 6704^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55075105 is a prime.

It is a super-2 number, since 2×55075105² = 6066534381522050, 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, 2142 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (8271549).

Almost surely, 2^55075105 is an apocalyptic number.

55075105 is the 4285-th octagonal number.

It is an amenable number.

55075105 is a deficient number, since it is larger than the sum of its proper divisors (11097287).

55075105 is a wasteful number, since it uses less digits than its factorization.

55075105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13715.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 55075105 is about 7421.2603377054. The cubic root of 55075105 is about 380.4682708239.

It can be divided in two parts, 55075 and 105, that multiplied together give a palindrome (5782875).

The spelling of 55075105 in words is "fifty-five million, seventy-five thousand, one hundred five".