40564725 has 12 divisors (see below), whose sum is σ = 67067136. Its totient is φ = 21634480.

The previous prime is 40564723. The next prime is 40564729. The reversal of 40564725 is 52746504.

It is not a de Polignac number, because 40564725 - 2¹ = 40564723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40564723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270357 + ... + 270506.

It is an arithmetic number, because the mean of its divisors is an integer number (5588928).

Almost surely, 2^40564725 is an apocalyptic number.

It is an amenable number.

40564725 is a deficient number, since it is larger than the sum of its proper divisors (26502411).

40564725 is a wasteful number, since it uses less digits than its factorization.

40564725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540876 (or 540871 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 40564725 is about 6369.0442768127. The cubic root of 40564725 is about 343.5971176908.

The spelling of 40564725 in words is "forty million, five hundred sixty-four thousand, seven hundred twenty-five".