10009556 has 6 divisors (see below), whose sum is σ = 17516730. Its totient is φ = 5004776.

The previous prime is 10009511. The next prime is 10009567. The reversal of 10009556 is 65590001.

It can be written as a sum of positive squares in only one way, i.e., 8213956 + 1795600 = 2866^2 + 1340^2 .

It is a super-2 number, since 2×10009556² = 200382422634272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251191 + ... + 1251198.

It is an arithmetic number, because the mean of its divisors is an integer number (2919455).

Almost surely, 2^10009556 is an apocalyptic number.

It is an amenable number.

10009556 is a deficient number, since it is larger than the sum of its proper divisors (7507174).

10009556 is a wasteful number, since it uses less digits than its factorization.

10009556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502393 (or 2502391 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 10009556 is about 3163.7882356441. The cubic root of 10009556 is about 215.5120730815.

Adding to 10009556 its reverse (65590001), we get a palindrome (75599557).

The spelling of 10009556 in words is "ten million, nine thousand, five hundred fifty-six".