39225457 has 2 divisors, whose sum is σ = 39225458. Its totient is φ = 39225456.

The previous prime is 39225413. The next prime is 39225463. The reversal of 39225457 is 75452293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 16719921 = 4744^2 + 4089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39225457 is a prime.

It is not a weakly prime, because it can be changed into another prime (39220457) 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, 19612728 + 19612729.

It is an arithmetic number, because the mean of its divisors is an integer number (19612729).

Almost surely, 2^39225457 is an apocalyptic number.

It is an amenable number.

39225457 is a deficient number, since it is larger than the sum of its proper divisors (1).

39225457 is an equidigital number, since it uses as much as digits as its factorization.

39225457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 39225457 is about 6263.0229921341. The cubic root of 39225457 is about 339.7733697322.

The spelling of 39225457 in words is "thirty-nine million, two hundred twenty-five thousand, four hundred fifty-seven".