10405505 has 16 divisors (see below), whose sum is σ = 13690944. Its totient is φ = 7529280.

The previous prime is 10405501. The next prime is 10405523. The reversal of 10405505 is 50550401.

It is not a de Polignac number, because 10405505 - 2² = 10405501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10405501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14894 + ... + 15576.

It is an arithmetic number, because the mean of its divisors is an integer number (855684).

Almost surely, 2^10405505 is an apocalyptic number.

It is an amenable number.

10405505 is a deficient number, since it is larger than the sum of its proper divisors (3285439).

10405505 is a wasteful number, since it uses less digits than its factorization.

10405505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 10405505 is about 3225.7565004197. The cubic root of 10405505 is about 218.3170833946.

Adding to 10405505 its reverse (50550401), we get a palindrome (60955906).

Subtracting 10405505 from its reverse (50550401), we obtain a square (40144896 = 6336²).

It can be divided in two parts, 10405 and 505, that multiplied together give a palindrome (5254525).

The spelling of 10405505 in words is "ten million, four hundred five thousand, five hundred five".