10505545 has 16 divisors (see below), whose sum is σ = 13033152. Its totient is φ = 8124480.

The previous prime is 10505531. The next prime is 10505563. The reversal of 10505545 is 54550501.

It is not a de Polignac number, because 10505545 - 2¹⁷ = 10374473 is a prime.

It is a super-2 number, since 2×10505545² = 220732951494050, 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 15 ways as a sum of consecutive naturals, for example, 27979 + ... + 28351.

It is an arithmetic number, because the mean of its divisors is an integer number (814572).

Almost surely, 2^10505545 is an apocalyptic number.

It is an amenable number.

10505545 is a deficient number, since it is larger than the sum of its proper divisors (2527607).

10505545 is a wasteful number, since it uses less digits than its factorization.

10505545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 10505545 is about 3241.2258483481. The cubic root of 10505545 is about 219.0144969310.

The spelling of 10505545 in words is "ten million, five hundred five thousand, five hundred forty-five".