40510225 has 24 divisors (see below), whose sum is σ = 58121280. Its totient is φ = 27433920.

The previous prime is 40510189. The next prime is 40510229. The reversal of 40510225 is 52201504.

It is not a de Polignac number, because 40510225 - 2⁹ = 40509713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40510229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13131 + ... + 15919.

It is an arithmetic number, because the mean of its divisors is an integer number (2421720).

Almost surely, 2^40510225 is an apocalyptic number.

It is an amenable number.

40510225 is a deficient number, since it is larger than the sum of its proper divisors (17611055).

40510225 is a wasteful number, since it uses less digits than its factorization.

40510225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889 (or 2884 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 40510225 is about 6364.7643318508. The cubic root of 40510225 is about 343.4431708357.

Adding to 40510225 its reverse (52201504), we get a palindrome (92711729).

The spelling of 40510225 in words is "forty million, five hundred ten thousand, two hundred twenty-five".