40525540039 has 2 divisors, whose sum is σ = 40525540040. Its totient is φ = 40525540038.

The previous prime is 40525540037. The next prime is 40525540057. The reversal of 40525540039 is 93004552504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40525540039 - 2¹ = 40525540037 is a prime.

Together with 40525540037, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40525540037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20262770019 + 20262770020.

It is an arithmetic number, because the mean of its divisors is an integer number (20262770020).

Almost surely, 2^40525540039 is an apocalyptic number.

40525540039 is a deficient number, since it is larger than the sum of its proper divisors (1).

40525540039 is an equidigital number, since it uses as much as digits as its factorization.

40525540039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 40525540039 in words is "forty billion, five hundred twenty-five million, five hundred forty thousand, thirty-nine".