40111225 has 48 divisors (see below), whose sum is σ = 63138816. Its totient is φ = 24552000.

The previous prime is 40111213. The next prime is 40111231. The reversal of 40111225 is 52211104.

It is not a de Polignac number, because 40111225 - 2⁵ = 40111193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40111199 and 40111208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128820 + ... + 129130.

It is an arithmetic number, because the mean of its divisors is an integer number (1315392).

Almost surely, 2^40111225 is an apocalyptic number.

It is an amenable number.

40111225 is a deficient number, since it is larger than the sum of its proper divisors (23027591).

40111225 is a wasteful number, since it uses less digits than its factorization.

40111225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 40111225 is about 6333.3423245550. The cubic root of 40111225 is about 342.3118827724.

Adding to 40111225 its reverse (52211104), we get a palindrome (92322329).

The spelling of 40111225 in words is "forty million, one hundred eleven thousand, two hundred twenty-five".