39252557 has 2 divisors, whose sum is σ = 39252558. Its totient is φ = 39252556.

The previous prime is 39252547. The next prime is 39252571. The reversal of 39252557 is 75525293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23483716 + 15768841 = 4846^2 + 3971^2 .

It is an emirp because it is prime and its reverse (75525293) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39252557 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39252557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39252527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19626278 + 19626279.

It is an arithmetic number, because the mean of its divisors is an integer number (19626279).

Almost surely, 2^39252557 is an apocalyptic number.

It is an amenable number.

39252557 is a deficient number, since it is larger than the sum of its proper divisors (1).

39252557 is an equidigital number, since it uses as much as digits as its factorization.

39252557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 38.

The square root of 39252557 is about 6265.1861105637. The cubic root of 39252557 is about 339.8515990195.

The spelling of 39252557 in words is "thirty-nine million, two hundred fifty-two thousand, five hundred fifty-seven".