40508325 has 72 divisors (see below), whose sum is σ = 85307040. Its totient is φ = 18115200.

The previous prime is 40508309. The next prime is 40508329. The reversal of 40508325 is 52380504.

40508325 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 40508325 - 2⁴ = 40508309 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40508329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31546 + ... + 32804.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^40508325 is an apocalyptic number.

40508325 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40508325 is an abundant number, since it is smaller than the sum of its proper divisors (44798715).

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

40508325 is a wasteful number, since it uses less digits than its factorization.

40508325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40508325 is about 6364.6150708429. The cubic root of 40508325 is about 343.4378013911.

Adding to 40508325 its reverse (52380504), we get a palindrome (92888829).

The spelling of 40508325 in words is "forty million, five hundred eight thousand, three hundred twenty-five".