10666625 has 8 divisors (see below), whose sum is σ = 13312104. Its totient is φ = 8533200.

The previous prime is 10666609. The next prime is 10666673. The reversal of 10666625 is 52666601.

It can be written as a sum of positive squares in 4 ways, for example, as 982081 + 9684544 = 991^2 + 3112^2 .

It is not a de Polignac number, because 10666625 - 2⁴ = 10666609 is a prime.

It is a super-2 number, since 2×10666625² = 227553777781250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10666591 and 10666600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42542 + ... + 42791.

It is an arithmetic number, because the mean of its divisors is an integer number (1664013).

Almost surely, 2^10666625 is an apocalyptic number.

It is an amenable number.

10666625 is a deficient number, since it is larger than the sum of its proper divisors (2645479).

10666625 is an frugal number, since it uses more digits than its factorization.

10666625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85348 (or 85338 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 10666625 is about 3265.9799448251. The cubic root of 10666625 is about 220.1281966336.

The spelling of 10666625 in words is "ten million, six hundred sixty-six thousand, six hundred twenty-five".