40725549 has 12 divisors (see below), whose sum is σ = 59124000. Its totient is φ = 27012744.

The previous prime is 40725533. The next prime is 40725583. The reversal of 40725549 is 94552704.

40725549 is a `hidden beast` number, since 40 + 72 + 5 + 549 = 666.

It is not a de Polignac number, because 40725549 - 2⁴ = 40725533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40725449) 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, 9579 + ... + 13160.

It is an arithmetic number, because the mean of its divisors is an integer number (4927000).

Almost surely, 2^40725549 is an apocalyptic number.

It is an amenable number.

40725549 is a deficient number, since it is larger than the sum of its proper divisors (18398451).

40725549 is a wasteful number, since it uses less digits than its factorization.

40725549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22944 (or 22941 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 40725549 is about 6381.6572299051. The cubic root of 40725549 is about 344.0505970510.

The spelling of 40725549 in words is "forty million, seven hundred twenty-five thousand, five hundred forty-nine".