43525673 has 2 divisors, whose sum is σ = 43525674. Its totient is φ = 43525672.

The previous prime is 43525639. The next prime is 43525693. The reversal of 43525673 is 37652534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42549529 + 976144 = 6523^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 43525673 - 2⁶ = 43525609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43525633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21762836 + 21762837.

It is an arithmetic number, because the mean of its divisors is an integer number (21762837).

Almost surely, 2^43525673 is an apocalyptic number.

It is an amenable number.

43525673 is a deficient number, since it is larger than the sum of its proper divisors (1).

43525673 is an equidigital number, since it uses as much as digits as its factorization.

43525673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 35.

The square root of 43525673 is about 6597.3989571649. The cubic root of 43525673 is about 351.7616569412.

The spelling of 43525673 in words is "forty-three million, five hundred twenty-five thousand, six hundred seventy-three".