40025625 has 20 divisors (see below), whose sum is σ = 66691152. Its totient is φ = 21346000.

The previous prime is 40025621. The next prime is 40025627. The reversal of 40025625 is 52652004.

40025625 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 40025625 - 2² = 40025621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40025595 and 40025604.

It is not an unprimeable number, because it can be changed into a prime (40025621) 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 19 ways as a sum of consecutive naturals, for example, 8799 + ... + 12548.

Almost surely, 2^40025625 is an apocalyptic number.

It is an amenable number.

40025625 is a deficient number, since it is larger than the sum of its proper divisors (26665527).

40025625 is an equidigital number, since it uses as much as digits as its factorization.

40025625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21370 (or 21355 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 40025625 is about 6326.5808301167. The cubic root of 40025625 is about 342.0682039686.

Adding to 40025625 its reverse (52652004), we get a palindrome (92677629).

The spelling of 40025625 in words is "forty million, twenty-five thousand, six hundred twenty-five".