10509956 has 12 divisors (see below), whose sum is σ = 18644892. Its totient is φ = 5182848.

The previous prime is 10509949. The next prime is 10509971. The reversal of 10509956 is 65990501.

It can be written as a sum of positive squares in 2 ways, for example, as 7840000 + 2669956 = 2800^2 + 1634^2 .

It is a super-2 number, since 2×10509956² = 220918350243872, which contains 22 as substring.

It is a congruent 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, 17705 + ... + 18288.

It is an arithmetic number, because the mean of its divisors is an integer number (1553741).

Almost surely, 2^10509956 is an apocalyptic number.

It is an amenable number.

10509956 is a deficient number, since it is larger than the sum of its proper divisors (8134936).

10509956 is a wasteful number, since it uses less digits than its factorization.

10509956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36070 (or 36068 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 10509956 is about 3241.9062293657. The cubic root of 10509956 is about 219.0451454367.

The spelling of 10509956 in words is "ten million, five hundred nine thousand, nine hundred fifty-six".