47518522 has 4 divisors (see below), whose sum is σ = 71277786. Its totient is φ = 23759260.

The previous prime is 47518517. The next prime is 47518561. The reversal of 47518522 is 22581574.

It is a happy number.

47518522 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 an emirpimes, since its reverse is a distinct semiprime: 22581574 = 2 ⋅11290787.

It can be written as a sum of positive squares in only one way, i.e., 38452401 + 9066121 = 6201^2 + 3011^2 .

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, 11879629 + ... + 11879632.

Almost surely, 2^47518522 is an apocalyptic number.

47518522 is a deficient number, since it is larger than the sum of its proper divisors (23759264).

47518522 is a wasteful number, since it uses less digits than its factorization.

47518522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23759263.

The product of its digits is 22400, while the sum is 34.

The square root of 47518522 is about 6893.3679721889. The cubic root of 47518522 is about 362.2048889474.

The spelling of 47518522 in words is "forty-seven million, five hundred eighteen thousand, five hundred twenty-two".