105520605 has 16 divisors (see below), whose sum is σ = 169098624. Its totient is φ = 56189120.

The previous prime is 105520603. The next prime is 105520607. The reversal of 105520605 is 506025501.

It is an interprime number because it is at equal distance from previous prime (105520603) and next prime (105520607).

It is not a de Polignac number, because 105520605 - 2¹ = 105520603 is a prime.

It is a super-2 number, since 2×105520605² = 22269196159132050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105520601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4960 + ... + 15350.

It is an arithmetic number, because the mean of its divisors is an integer number (10568664).

Almost surely, 2^105520605 is an apocalyptic number.

105520605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105520605 is a deficient number, since it is larger than the sum of its proper divisors (63578019).

105520605 is a wasteful number, since it uses less digits than its factorization.

105520605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11076.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 105520605 is about 10272.3222788228. The cubic root of 105520605 is about 472.5478129718.

It can be divided in two parts, 105 and 520605, that added together give a triangular number (520710 = T₁₀₂₀).

The spelling of 105520605 in words is "one hundred five million, five hundred twenty thousand, six hundred five".