11280525 has 12 divisors (see below), whose sum is σ = 18650592. Its totient is φ = 6016240.

The previous prime is 11280473. The next prime is 11280527. The reversal of 11280525 is 52508211.

It is not a de Polignac number, because 11280525 - 2⁷ = 11280397 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11280495 and 11280504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11280527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75129 + ... + 75278.

It is an arithmetic number, because the mean of its divisors is an integer number (1554216).

Almost surely, 2^11280525 is an apocalyptic number.

11280525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11280525 is a deficient number, since it is larger than the sum of its proper divisors (7370067).

11280525 is a wasteful number, since it uses less digits than its factorization.

11280525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150420 (or 150415 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 11280525 is about 3358.6492820775. The cubic root of 11280525 is about 224.2727133911.

Adding to 11280525 its reverse (52508211), we get a palindrome (63788736).

The spelling of 11280525 in words is "eleven million, two hundred eighty thousand, five hundred twenty-five".