10520985 has 8 divisors (see below), whose sum is σ = 16833600. Its totient is φ = 5611184.

The previous prime is 10520981. The next prime is 10521001. The reversal of 10520985 is 58902501.

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

It is a cyclic number.

It is not a de Polignac number, because 10520985 - 2² = 10520981 is a prime.

It is a super-2 number, since 2×10520985² = 221382250740450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10520981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350685 + ... + 350714.

It is an arithmetic number, because the mean of its divisors is an integer number (2104200).

Almost surely, 2^10520985 is an apocalyptic number.

10520985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10520985 is a deficient number, since it is larger than the sum of its proper divisors (6312615).

10520985 is an equidigital number, since it uses as much as digits as its factorization.

10520985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701407.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 10520985 is about 3243.6067887461. The cubic root of 10520985 is about 219.1217396156.

The spelling of 10520985 in words is "ten million, five hundred twenty thousand, nine hundred eighty-five".