11200520 has 16 divisors (see below), whose sum is σ = 25201260. Its totient is φ = 4480192.

The previous prime is 11200499. The next prime is 11200531. The reversal of 11200520 is 2500211.

It can be written as a sum of positive squares in 2 ways, for example, as 11035684 + 164836 = 3322^2 + 406^2 .

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, 139967 + ... + 140046.

Almost surely, 2^11200520 is an apocalyptic number.

11200520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11200520 is an abundant number, since it is smaller than the sum of its proper divisors (14000740).

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

11200520 is a wasteful number, since it uses less digits than its factorization.

11200520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280024 (or 280020 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 11200520 is about 3346.7177950942. The cubic root of 11200520 is about 223.7412509713.

Adding to 11200520 its reverse (2500211), we get a palindrome (13700731).

The spelling of 11200520 in words is "eleven million, two hundred thousand, five hundred twenty".