39502049 has 2 divisors, whose sum is σ = 39502050. Its totient is φ = 39502048.

The previous prime is 39502039. The next prime is 39502081. The reversal of 39502049 is 94020593.

It is an a-pointer prime, because the next prime (39502081) can be obtained adding 39502049 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38837824 + 664225 = 6232^2 + 815^2 .

It is an emirp because it is prime and its reverse (94020593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39502049 - 2²⁴ = 22724833 is a prime.

It is not a weakly prime, because it can be changed into another prime (39502019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19751024 + 19751025.

It is an arithmetic number, because the mean of its divisors is an integer number (19751025).

Almost surely, 2^39502049 is an apocalyptic number.

It is an amenable number.

39502049 is a deficient number, since it is larger than the sum of its proper divisors (1).

39502049 is an equidigital number, since it uses as much as digits as its factorization.

39502049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 39502049 is about 6285.0655525619. The cubic root of 39502049 is about 340.5701190262.

The spelling of 39502049 in words is "thirty-nine million, five hundred two thousand, forty-nine".