10109555 has 8 divisors (see below), whose sum is σ = 12156144. Its totient is φ = 8071200.

The previous prime is 10109549. The next prime is 10109557. The reversal of 10109555 is 55590101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-10109555 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10109557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (1519518).

Almost surely, 2^10109555 is an apocalyptic number.

10109555 is a deficient number, since it is larger than the sum of its proper divisors (2046589).

10109555 is an equidigital number, since it uses as much as digits as its factorization.

10109555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 10109555 is about 3179.5526414891. The cubic root of 10109555 is about 216.2273768753.

Adding to 10109555 its reverse (55590101), we get a palindrome (65699656).

The spelling of 10109555 in words is "ten million, one hundred nine thousand, five hundred fifty-five".