39925243 has 2 divisors, whose sum is σ = 39925244. Its totient is φ = 39925242.

The previous prime is 39925211. The next prime is 39925261. The reversal of 39925243 is 34252993.

It is a strong prime.

It is an emirp because it is prime and its reverse (34252993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39925243 - 2⁵ = 39925211 is a prime.

It is not a weakly prime, because it can be changed into another prime (30925243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19962621 + 19962622.

It is an arithmetic number, because the mean of its divisors is an integer number (19962622).

Almost surely, 2^39925243 is an apocalyptic number.

39925243 is a deficient number, since it is larger than the sum of its proper divisors (1).

39925243 is an equidigital number, since it uses as much as digits as its factorization.

39925243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

The square root of 39925243 is about 6318.6424966127. The cubic root of 39925243 is about 341.7820020167.

The spelling of 39925243 in words is "thirty-nine million, nine hundred twenty-five thousand, two hundred forty-three".