38522257 has 4 divisors (see below), whose sum is σ = 39064896. Its totient is φ = 37979620.

The previous prime is 38522249. The next prime is 38522287. The reversal of 38522257 is 75222583.

38522257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38522257 - 2³ = 38522249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38522287) 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 in 3 ways as a sum of consecutive naturals, for example, 271213 + ... + 271354.

It is an arithmetic number, because the mean of its divisors is an integer number (9766224).

Almost surely, 2^38522257 is an apocalyptic number.

It is an amenable number.

38522257 is a deficient number, since it is larger than the sum of its proper divisors (542639).

38522257 is an equidigital number, since it uses as much as digits as its factorization.

38522257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542638.

The product of its digits is 33600, while the sum is 34.

The square root of 38522257 is about 6206.6300840311. The cubic root of 38522257 is about 337.7307269132.

The spelling of 38522257 in words is "thirty-eight million, five hundred twenty-two thousand, two hundred fifty-seven".