38550331 has 2 divisors, whose sum is σ = 38550332. Its totient is φ = 38550330.

The previous prime is 38550313. The next prime is 38550359. The reversal of 38550331 is 13305583.

Together with previous prime (38550313) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (38550359) can be obtained adding 38550331 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (13305583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38550331 - 2¹⁷ = 38419259 is a prime.

It is a super-2 number, since 2×38550331² = 2972256040419122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38550331.

It is not a weakly prime, because it can be changed into another prime (38550361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19275165 + 19275166.

It is an arithmetic number, because the mean of its divisors is an integer number (19275166).

Almost surely, 2^38550331 is an apocalyptic number.

38550331 is a deficient number, since it is larger than the sum of its proper divisors (1).

38550331 is an equidigital number, since it uses as much as digits as its factorization.

38550331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 38550331 is about 6208.8912858899. The cubic root of 38550331 is about 337.8127500588.

The spelling of 38550331 in words is "thirty-eight million, five hundred fifty thousand, three hundred thirty-one".