10056665 has 4 divisors (see below), whose sum is σ = 12068004. Its totient is φ = 8045328.

The previous prime is 10056659. The next prime is 10056677. The reversal of 10056665 is 56665001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56665001 = 397 ⋅142733.

It can be written as a sum of positive squares in 2 ways, for example, as 6948496 + 3108169 = 2636^2 + 1763^2 .

It is a cyclic number.

It is not a de Polignac number, because 10056665 - 2⁶ = 10056601 is a prime.

It is a super-2 number, since 2×10056665² = 202273021844450, 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 3 ways as a sum of consecutive naturals, for example, 1005662 + ... + 1005671.

It is an arithmetic number, because the mean of its divisors is an integer number (3017001).

Almost surely, 2^10056665 is an apocalyptic number.

It is an amenable number.

10056665 is a deficient number, since it is larger than the sum of its proper divisors (2011339).

10056665 is an equidigital number, since it uses as much as digits as its factorization.

10056665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011338.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 10056665 is about 3171.2245268981. The cubic root of 10056665 is about 215.8496395837.

It can be divided in two parts, 100 and 56665, that added together give a palindrome (56765).

The spelling of 10056665 in words is "ten million, fifty-six thousand, six hundred sixty-five".