38252813 has 2 divisors, whose sum is σ = 38252814. Its totient is φ = 38252812.

The previous prime is 38252807. The next prime is 38252867. The reversal of 38252813 is 31825283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37002889 + 1249924 = 6083^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 38252813 - 2¹⁰ = 38251789 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 38252813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38852813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19126406 + 19126407.

It is an arithmetic number, because the mean of its divisors is an integer number (19126407).

Almost surely, 2^38252813 is an apocalyptic number.

It is an amenable number.

38252813 is a deficient number, since it is larger than the sum of its proper divisors (1).

38252813 is an equidigital number, since it uses as much as digits as its factorization.

38252813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 38252813 is about 6184.8858518165. The cubic root of 38252813 is about 336.9414644727.

The spelling of 38252813 in words is "thirty-eight million, two hundred fifty-two thousand, eight hundred thirteen".