47521312 has 24 divisors (see below), whose sum is σ = 97626816. Its totient is φ = 22727232.

The previous prime is 47521259. The next prime is 47521333. The reversal of 47521312 is 21312574.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31548 + ... + 33019.

It is an arithmetic number, because the mean of its divisors is an integer number (4067784).

Almost surely, 2^47521312 is an apocalyptic number.

It is an amenable number.

47521312 is an abundant number, since it is smaller than the sum of its proper divisors (50105504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47521312 is a wasteful number, since it uses less digits than its factorization.

47521312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64600 (or 64592 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 47521312 is about 6893.5703376407. The cubic root of 47521312 is about 362.2119776350.

Adding to 47521312 its reverse (21312574), we get a palindrome (68833886).

The spelling of 47521312 in words is "forty-seven million, five hundred twenty-one thousand, three hundred twelve".