40033765625 has 42 divisors (see below), whose sum is σ = 58212731430. Its totient is φ = 27451200000.

The previous prime is 40033765621. The next prime is 40033765649. The reversal of 40033765625 is 52656733004.

It can be written as a sum of positive squares in 7 ways, for example, as 39844950544 + 188815081 = 199612^2 + 13741^2 .

It is not a de Polignac number, because 40033765625 - 2² = 40033765621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40033765621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 739481 + ... + 791769.

It is an arithmetic number, because the mean of its divisors is an integer number (1386017415).

Almost surely, 2^40033765625 is an apocalyptic number.

It is an amenable number.

40033765625 is a deficient number, since it is larger than the sum of its proper divisors (18178965805).

40033765625 is an frugal number, since it uses more digits than its factorization.

40033765625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52333 (or 52301 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 40033765625 in words is "forty billion, thirty-three million, seven hundred sixty-five thousand, six hundred twenty-five".