47381522 has 4 divisors (see below), whose sum is σ = 71072286. Its totient is φ = 23690760.

The previous prime is 47381519. The next prime is 47381531. The reversal of 47381522 is 22518374.

47381522 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.

It can be written as a sum of positive squares in only one way, i.e., 33535681 + 13845841 = 5791^2 + 3721^2 .

It is an unprimeable number.

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, 11845379 + ... + 11845382.

Almost surely, 2^47381522 is an apocalyptic number.

47381522 is a deficient number, since it is larger than the sum of its proper divisors (23690764).

47381522 is a wasteful number, since it uses less digits than its factorization.

47381522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23690763.

The product of its digits is 13440, while the sum is 32.

The square root of 47381522 is about 6883.4237120782. The cubic root of 47381522 is about 361.8564645685.

Adding to 47381522 its reverse (22518374), we get a palindrome (69899896).

The spelling of 47381522 in words is "forty-seven million, three hundred eighty-one thousand, five hundred twenty-two".