40525065 has 48 divisors (see below), whose sum is σ = 80990208. Its totient is φ = 18361728.

The previous prime is 40525061. The next prime is 40525087. The reversal of 40525065 is 56052504.

40525065 is a `hidden beast` number, since 405 + 250 + 6 + 5 = 666.

It is not a de Polignac number, because 40525065 - 2² = 40525061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40525061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39499 + ... + 40511.

It is an arithmetic number, because the mean of its divisors is an integer number (1687296).

Almost surely, 2^40525065 is an apocalyptic number.

40525065 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40525065 is a deficient number, since it is larger than the sum of its proper divisors (40465143).

40525065 is a wasteful number, since it uses less digits than its factorization.

40525065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 40525065 is about 6365.9300184655. The cubic root of 40525065 is about 343.4851032485.

Adding to 40525065 its reverse (56052504), we get a palindrome (96577569).

The spelling of 40525065 in words is "forty million, five hundred twenty-five thousand, sixty-five".