10409555 has 24 divisors (see below), whose sum is σ = 13773312. Its totient is φ = 7547904.

The previous prime is 10409551. The next prime is 10409561. The reversal of 10409555 is 55590401.

It is not a de Polignac number, because 10409555 - 2² = 10409551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10409551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81902 + ... + 82028.

It is an arithmetic number, because the mean of its divisors is an integer number (573888).

Almost surely, 2^10409555 is an apocalyptic number.

10409555 is a deficient number, since it is larger than the sum of its proper divisors (3363757).

10409555 is a wasteful number, since it uses less digits than its factorization.

10409555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 10409555 is about 3226.3841990687. The cubic root of 10409555 is about 218.3454039646.

Adding to 10409555 its reverse (55590401), we get a palindrome (65999956).

The spelling of 10409555 in words is "ten million, four hundred nine thousand, five hundred fifty-five".