10666025 has 6 divisors (see below), whose sum is σ = 13225902. Its totient is φ = 8532800.

The previous prime is 10666003. The next prime is 10666031. The reversal of 10666025 is 52066601.

It can be written as a sum of positive squares in 3 ways, for example, as 44944 + 10621081 = 212^2 + 3259^2 .

It is not a de Polignac number, because 10666025 - 2⁸ = 10665769 is a prime.

It is a super-2 number, since 2×10666025² = 227528178601250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10665985 and 10666003.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213296 + ... + 213345.

It is an arithmetic number, because the mean of its divisors is an integer number (2204317).

Almost surely, 2^10666025 is an apocalyptic number.

It is an amenable number.

10666025 is a deficient number, since it is larger than the sum of its proper divisors (2559877).

10666025 is an equidigital number, since it uses as much as digits as its factorization.

10666025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426651 (or 426646 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 10666025 is about 3265.8880874886. Note that the first 3 decimals coincide. The cubic root of 10666025 is about 220.1240691364.

The spelling of 10666025 in words is "ten million, six hundred sixty-six thousand, twenty-five".