10555709 has 4 divisors (see below), whose sum is σ = 10576416. Its totient is φ = 10535004.

The previous prime is 10555679. The next prime is 10555711. The reversal of 10555709 is 90755501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90755501 = 433 ⋅209597.

It is a cyclic number.

It is not a de Polignac number, because 10555709 - 2¹² = 10551613 is a prime.

It is a super-2 number, since 2×10555709² = 222845984985362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10555729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9569 + ... + 10614.

It is an arithmetic number, because the mean of its divisors is an integer number (2644104).

Almost surely, 2^10555709 is an apocalyptic number.

It is an amenable number.

10555709 is a deficient number, since it is larger than the sum of its proper divisors (20707).

10555709 is an equidigital number, since it uses as much as digits as its factorization.

10555709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20706.

The product of its (nonzero) digits is 7875, while the sum is 32.

The square root of 10555709 is about 3248.9550627856. The cubic root of 10555709 is about 219.3625417773.

The spelling of 10555709 in words is "ten million, five hundred fifty-five thousand, seven hundred nine".