11405225 has 24 divisors (see below), whose sum is σ = 16040640. Its totient is φ = 7974720.

The previous prime is 11405201. The next prime is 11405239. The reversal of 11405225 is 52250411.

11405225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11405225 - 2¹⁰ = 11404201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11405197 and 11405206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5252 + ... + 7098.

It is an arithmetic number, because the mean of its divisors is an integer number (668360).

Almost surely, 2^11405225 is an apocalyptic number.

It is an amenable number.

11405225 is a deficient number, since it is larger than the sum of its proper divisors (4635415).

11405225 is a wasteful number, since it uses less digits than its factorization.

11405225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 11405225 is about 3377.1622703092. The cubic root of 11405225 is about 225.0960906440.

Adding to 11405225 its reverse (52250411), we get a palindrome (63655636).

The spelling of 11405225 in words is "eleven million, four hundred five thousand, two hundred twenty-five".