10503985 has 16 divisors (see below), whose sum is σ = 13242240. Its totient is φ = 7983360.

The previous prime is 10503959. The next prime is 10503989. The reversal of 10503985 is 58930501.

It is not a de Polignac number, because 10503985 - 2⁹ = 10503473 is a prime.

It is a super-2 number, since 2×10503985² = 220667401760450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10503989) 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, 27526 + ... + 27904.

It is an arithmetic number, because the mean of its divisors is an integer number (827640).

Almost surely, 2^10503985 is an apocalyptic number.

It is an amenable number.

10503985 is a deficient number, since it is larger than the sum of its proper divisors (2738255).

10503985 is a wasteful number, since it uses less digits than its factorization.

10503985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 10503985 is about 3240.9851897224. The cubic root of 10503985 is about 219.0036556870.

The spelling of 10503985 in words is "ten million, five hundred three thousand, nine hundred eighty-five".