40529497 has 2 divisors, whose sum is σ = 40529498. Its totient is φ = 40529496.

The previous prime is 40529477. The next prime is 40529509. The reversal of 40529497 is 79492504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23464336 + 17065161 = 4844^2 + 4131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40529497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40529407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20264748 + 20264749.

It is an arithmetic number, because the mean of its divisors is an integer number (20264749).

Almost surely, 2^40529497 is an apocalyptic number.

It is an amenable number.

40529497 is a deficient number, since it is larger than the sum of its proper divisors (1).

40529497 is an equidigital number, since it uses as much as digits as its factorization.

40529497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 40529497 is about 6366.2781120526. The cubic root of 40529497 is about 343.4976244744.

The spelling of 40529497 in words is "forty million, five hundred twenty-nine thousand, four hundred ninety-seven".