40054541 has 4 divisors (see below), whose sum is σ = 40107132. Its totient is φ = 40001952.

The previous prime is 40054519. The next prime is 40054559. The reversal of 40054541 is 14545004.

40054541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7678441 + 32376100 = 2771^2 + 5690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40054541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40054561) 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 3 ways as a sum of consecutive naturals, for example, 25136 + ... + 26681.

It is an arithmetic number, because the mean of its divisors is an integer number (10026783).

Almost surely, 2^40054541 is an apocalyptic number.

It is an amenable number.

40054541 is a deficient number, since it is larger than the sum of its proper divisors (52591).

40054541 is an equidigital number, since it uses as much as digits as its factorization.

40054541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52590.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 40054541 is about 6328.8656961576. The cubic root of 40054541 is about 342.1505584037.

Adding to 40054541 its reverse (14545004), we get a palindrome (54599545).

The spelling of 40054541 in words is "forty million, fifty-four thousand, five hundred forty-one".