40725547 has 8 divisors (see below), whose sum is σ = 42025536. Its totient is φ = 39443712.

The previous prime is 40725533. The next prime is 40725583. The reversal of 40725547 is 74552704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40725547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40525547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93 + ... + 9025.

It is an arithmetic number, because the mean of its divisors is an integer number (5253192).

Almost surely, 2^40725547 is an apocalyptic number.

40725547 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

40725547 is a deficient number, since it is larger than the sum of its proper divisors (1299989).

40725547 is an equidigital number, since it uses as much as digits as its factorization.

40725547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 40725547 is about 6381.6570732060. The cubic root of 40725547 is about 344.0505914190.

The spelling of 40725547 in words is "forty million, seven hundred twenty-five thousand, five hundred forty-seven".