38055581 has 2 divisors, whose sum is σ = 38055582. Its totient is φ = 38055580.

The previous prime is 38055553. The next prime is 38055601. The reversal of 38055581 is 18555083.

38055581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34035556 + 4020025 = 5834^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 38055581 - 2⁶ = 38055517 is a prime.

It is a super-2 number, since 2×38055581² = 2896454490495122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38055541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19027790 + 19027791.

It is an arithmetic number, because the mean of its divisors is an integer number (19027791).

Almost surely, 2^38055581 is an apocalyptic number.

It is an amenable number.

38055581 is a deficient number, since it is larger than the sum of its proper divisors (1).

38055581 is an equidigital number, since it uses as much as digits as its factorization.

38055581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 38055581 is about 6168.9205700836. The cubic root of 38055581 is about 336.3613748238.

The spelling of 38055581 in words is "thirty-eight million, fifty-five thousand, five hundred eighty-one".