40043011325 has 24 divisors (see below), whose sum is σ = 50391149760. Its totient is φ = 31559091200.

The previous prime is 40043011259. The next prime is 40043011343. The reversal of 40043011325 is 52311034004.

It is not a de Polignac number, because 40043011325 - 2⁸ = 40043011069 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40043011325.

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, 2525021 + ... + 2540829.

It is an arithmetic number, because the mean of its divisors is an integer number (2099631240).

Almost surely, 2^40043011325 is an apocalyptic number.

It is an amenable number.

40043011325 is a deficient number, since it is larger than the sum of its proper divisors (10348138435).

40043011325 is a wasteful number, since it uses less digits than its factorization.

40043011325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17317 (or 17312 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40043011325 its reverse (52311034004), we get a palindrome (92354045329).

The spelling of 40043011325 in words is "forty billion, forty-three million, eleven thousand, three hundred twenty-five".