42049529 has 2 divisors, whose sum is σ = 42049530. Its totient is φ = 42049528.

The previous prime is 42049499. The next prime is 42049541. The reversal of 42049529 is 92594024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41925625 + 123904 = 6475^2 + 352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42049529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42049429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21024764 + 21024765.

It is an arithmetic number, because the mean of its divisors is an integer number (21024765).

Almost surely, 2^42049529 is an apocalyptic number.

It is an amenable number.

42049529 is a deficient number, since it is larger than the sum of its proper divisors (1).

42049529 is an equidigital number, since it uses as much as digits as its factorization.

42049529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 42049529 is about 6484.5608178195. The cubic root of 42049529 is about 347.7392490065.

The spelling of 42049529 in words is "forty-two million, forty-nine thousand, five hundred twenty-nine".