10550320 has 80 divisors (see below), whose sum is σ = 28212480. Its totient is φ = 3628800.

The previous prime is 10550317. The next prime is 10550329. The reversal of 10550320 is 2305501.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10550320² = 222618504204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 10550294 and 10550303.

It is not an unprimeable number, because it can be changed into a prime (10550329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16405 + ... + 17035.

It is an arithmetic number, because the mean of its divisors is an integer number (352656).

Almost surely, 2^10550320 is an apocalyptic number.

10550320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10550320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14106240).

10550320 is an abundant number, since it is smaller than the sum of its proper divisors (17662160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10550320 is a wasteful number, since it uses less digits than its factorization.

10550320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 10550320 is about 3248.1256133346. The cubic root of 10550320 is about 219.3252050790.

Adding to 10550320 its reverse (2305501), we get a palindrome (12855821).

The spelling of 10550320 in words is "ten million, five hundred fifty thousand, three hundred twenty".